Staples has the Seagate FreeAgent GoFlex 500GB USB 2.0 Ultra-Portable Hard Drive- (Black) for only $79.99 - $25 off $75 coupon (buy the coupon from eBay for $3.75) = $55 w/ free shipping, free shipping to store.

NewEgg has the follow new offers.

$19 off SteamFast SF-142 Steam Mop White $30.99 w/ code: EMCYTZT633 (exp 7/31)
Extra $5 off ADATA Superior Series 32GB S102 USB 3.0 Flash Drive (Titanium Gray) Model AS102-32G-RGY $39.99 w/ code: EMCYTZT634 (exp 7/31)
$12 off Call of Duty: Modern Warfare 3 Xbox 360 Game Activision $47.99 w/ code: EMCYTZT636 (exp 7/31)
Extra $15 off Microsoft Office 2010 Home & Student 3-User $109.99 w/ code: EMCYTZT635 (exp 7/31)
Extra $20 off Seagate FreeAgent GoFlex 500GB USB 2.0 Black Ultra-portable Hard Drive STAA500100 $49.99 w/ code: EMCYTZT632 (exp 7/31)
Extra $20 off Panasonic DMC-FZ40K Black 14.1MP 3.0in 230K LCD 24X Optical Zoom 25mm Wide Angle Digital Camera w/ code: EMCYTZT631 (exp 7/30)

NewEgg has the All-Stars Series sale.

HDTV & Monitor

Extra $100 off Toshiba 40in 1080p 60Hz LCD HDTV 40E210 w/ code: EMCKFHD23 (exp 5/2)
Extra $200 off Samsung 46in 3-D ready 1080p 240Hz LED-LCD HDTV UN46C7000 w/ code: EMCKFHD22 (exp 5/2)
Extra $20 off ASUS ML249H Black 24in 8ms GTG HDMI Widescreen MVA panel wiith 178° Wide Viewing Angle LED Backlit LCD Monitor 250 cd/m2 ASCR 50,000,000:1 (3,000:1) $229.99 w/ code: EMCKFHD46 (exp 5/2)
Extra $20 off ViewSonic VX2250wm-LED Black 21.5in 5ms Full HD LED Backlight LCD monitor $149.99 w/ code: EMCKFHD45 (exp 5/2)

Home Theater & Speaker

Extra $30 off Polk Audio CS2 Series II Center Channel Speaker (Black) Each $99.99 w/ code: EMCKFHD66 (exp 5/2)
Extra $80 off YAMAHA RX-V667BL 7.2-Channel Receiver $359.99 w/ code: EMCKFHD65 (exp 5/2)
Extra $250 off MartinLogan MLT-2 5.1CH Premium Home Theater Speaker System Black System $349.99 w/ code: EMCKFHD64 (exp 5/2)
Extra $170 off Yamaha YMC-500BL NeoHD Media Controller 5.1 CH AV Receiver (Black) $129.99 w/ code: EMCKFHD59 (exp 5/2)

Software

Extra $10 off Microsoft Office 2010 Home and Business $204 w/ code: EMCKFHD56 (exp 5/2)
Extra $5 off Symantec Norton Internet Security 2011 1u/3pc $19.99 w/ code: EMCKFHD55 (exp 5/2)
Extra $15 off Microsoft Office 2010 Professional $399.99 w/ code: EMCKFHD54 (exp 5/2)

Router

Extra $25 off ASUS WL-330gE IEEE 802.3/3u, IEEE 802.11b/g 4-in-one portable wireless router $16.99 After $10.00 MIR w/ code: EMCKFHD44 (exp 5/2)
Extra $20 off ASUS RT-N56U 802.11a/b/g/n Dual Band 300Mbps Multimedia Ultra Slim Gigabit Wireless Router $109.99 w/ code: EMCKFHD43 (exp 5/2)
Extra $10 off D-Link DIR-655 802.11b/g/n Xtreme N Gigabit Wireless Broadband Router $54.99 w/ code: EMCKFHD42 (exp 5/2)

Computer Case & Power Supply

Extra $20 off LIAN LI Lancool PC-K7B Black Aluminum/ SECC ATX Mid Tower Computer Case $69.99 w/ code: EMCKFHD38 (exp 5/2)
Extra $5 off Rosewill R363-M-BK Black Ultra High Gloss Finished MicroATX Computer Case with 400W Power Supply $44.99 w/ code: EMCKFHD37 (exp 5/2)
Extra $30 off OCZ Fatal1ty OCZ550FTY 550W SLI Ready 80 PLUS Certified Modular Active PFC Power Supply $39.99 After $20.00 MIR w/ code: EMCKFHD36 (exp 5/2)
Extra $25 off Antec NEO ECO 620C 620W Continuous Power 80 PLUS Certified Power Supply $44.99 After $20.00 MIRAfter w/ code: EMCKFHD35 (exp 5/2)

Hard Drive

$5 off Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5in Internal Hard Drive $39.99 w/ code: EMCKFHD24 (exp 5/2)
Extra $10 off Seagate FreeAgent GoFlex 500GB USB 2.0 Ultra-portable Hard Drive STAA500100 $59.99 w/ code: EMCKFHD39 (exp 5/2)
Extra $10 off HITACHI Deskstar 3TB 7200 RPM SATA 6.0Gb/s Hard Drive $169.99 w/ code: EMCKFHD28 (exp 5/2)
Extra $10 off Seagate ST320005LSA10G-RK 2TB BlackArmor NAS 220 $189.99 w/ code: EMCKFHD27 (exp 5/2)

CPU / Motherboard / Memory

$10 off AMD Phenom II X4 925 Deneb 2.8GHz Socket AM3 95W Quad-Core Processor $104.99 w/ code: EMCKFHD32 (exp 5/2)
Extra $10 off ASUS P8P67 (REV 3.0) LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard $144.99 w/ code: EMCKFHD33 (exp 5/2)
$15 off CORSAIR Vengeance 8GB (2 x 4GB) DDR3 1866 Desktop Memory $94.99 After $20.00 MIR w/ code: EMCKFHD26 (exp 5/2)
Extra $10 off CORSAIR DOMINATOR 6GB (3 x 2GB) DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory $94.99 w/ code: EMCKFHD25 (exp 5/2)

Computer & accessories

Extra $50 off Acer Aspire AM3400-U4132 (PT.SF702.014) Phenom II X4 955(3.2GHz) Desktop PC, 6GB DDR3, 1TB HDD $549.99 w/ code: EMCKFHD63 (exp 5/2)
Extra $25 off Sennheiser - Cordless Wireless Stereo Headphones (RS 120) $64.99 w/ code: EMCKFHD82 (exp 5/2)
LITE-ON Black 22X DVD+/-R 2MB Cache IDE 22X DVD±R DVD Burner - OEM $29.99 free shipping w/ code: EMCKFHD29 (exp 5/2)
Extra $5 off Motorola Behind-the-Neck Bluetooth Stereo Headset Black Bulk (S9-HD) - OEM $44.99 w/ code: EMCKFHD77 (exp 5/2)
Extra $10 off Rosewill RTK-090 90 Piece Professional Computer Tool Kit $29.99 w/ code: EMCKFHD57 (exp 5/2)
Extra $20 off Logitech K750 Black USB RF Wireless Slim solar-powered Keyboard $49.99 After $15.00 MIR w/ code: EMCKFHD48 (exp 5/2)
Extra $10 off Rosewill RKM-1600RF Slim Wireless Multimedia Keyboard and Laser Mouse Combo $29.99 w/ code: EMCKFHD47 (exp 5/2)

Home

$40 off Sunpentown SR964TB Induction Cooker $49.99 w/ code: EMCKFHD76 (exp 5/2)
Extra $15 off Hamilton Beach 67650 Big Mouth Pro Juice Extractor $54.99 w/ code: EMCKFHD74 (exp 5/2)

Projector

Extra $40 off ViewSonic PRO8200 HD 1080p 1920x1080 2000 Lumens Home Theater DLP Projector $889.99 w/ code: EMCKFHD68 (exp 5/2)
Extra $50 off BenQ W600+ 1280 x 720 DLP 3D-ready Home Cinema Projector 2600 ANSI lumens 4000:1 $549.99 w/ code: EMCKFHD67 (exp 5/2)

Camera

Extra $15 off D-Link DCS-930L 640 x 480 MAX Resolution RJ45 Wireless N Network Camera $59.99 w/ code: EMCKFHD62 (exp 5/2)
$50 off SAMSUNG SMX-F50BN Black 1/6in CCD 2.7in 230k LCD 52X Optical Zoom HDD/Flash Memory Camcorder $139.99 w/ code: EMCKFHD69 (exp 5/2)
Extra $30 off KGuard CA104-H02 4 Camera+4 Channel DVR with Remote Web / Mobile Phone Access $189.99 After $20.00 MIR w/ code: EMCKFHD72 (exp 5/2)

Others

Extra $5 off Rosewill RX358 RX-358-U3S Full Aluminum Cover, metal tray 3.5in Silver USB 3.0 External Enclosure $29.99 w/ code: EMCKFHD58 (exp 5/2)
RiDATA 4.7GB 16X DVD-R 100 Packs Cake Box Disc Model DRD-4716-RDCB100E - OEM $15.99 free shipping w/ code: EMCKFHD52 (exp 5/2)
$3 off Verbatim 8.5GB 2.4X DVD+R DL 20 Packs Cake Box Branded Disc Model 95310 $19.99 w/ code: EMCKFHD49 (exp 5/2)
$10 off Rosewill RC-211 Silicon Image 2 port SATA II PCI Express Host Controller Card(RAID 0/1/JBOD) $19.99 w/ code: EMCKFHD34 (exp 5/2)
Extra $15 off Cables Unlimited - 14GA Speaker Wire w/ pins (100 FEET) $24.99 w/ code: EMCKFHD83 (exp 5/2)
Extra $100 off BELTRONICS RX65 Red Radar-Laser Detector w/ code: EMCKFHD79 (exp 5/2)
Extra $12 off Rosewill RCI-400MS 400W DC To AC Power Inverter with Power Protection and Alarming $22.99 w/ code: EMCKFHD78 (exp 5/2)
Extra $12 off Rosewill RMS-MA2740 Black 13in - 27in Tilt/Swivel Wall Mount with Articulating Arm $17.99 w/ code: EMCKFHD73 (exp 5/2)

Office Depot has the Seagate FreeAgent GoFlex Ultra-Portable External 500GB Hard Drive for only $60 w/ free shipping.

Buy it with Seagate FreeAgent GoFlex Net Media Sharing Device for only $110 - $20 off via coupon code: 62739867 = $90 w/ free shipping.

NewEgg has the Seagate FreeAgent GoFlex 500GB USB 2.0 Ultra-portable Hard Drive STAA500100 for only $99.99 + $0 shipping = $100 shipped. Tax in CA, NJ, TN.