NewEgg has the 48-HOURS DEALS Sale.

Computer Accessories

$90 off V-Moda Crossfade LP x flpr-nero 3.5mm Connector Circumaural Headphone $89.99 w/ code: EMCKDKC63 (exp 6/8)
Extra $10 off MEElectronics HT-21-BK 3.5mm Connector Supra-aural High Performance Portable Headphone $19.99 w/ code: EMCKDKC62 (exp 6/8)
$20 off Kensington 64325 Black 4 Buttons USB Wired TrackBall Ultimate Trackball Mouse $49.99 After $30.00 MIR w/ code: EMCKDKC53 (exp 6/8)
Creative Sound Blaster X-Fi Titanium HD 24-bit 96KHz Sound Card $134.99 free shipping w/ code: EMCKDKC52 (exp 6/8)
15% pff all internal Blu-Ray Burners w/ code: EMCKDKC73 (exp 6/8)

Speaker & Home Theater

$100 off Mirage Omnican OC-55 In-Ceiling Speaker Each $99.99 w/ code: EMCKDKC68 (exp 6/8)
Extra $220 off MartinLogan MLT-1 5.1CH Home Theater Speaker System Black System $279.99 w/ code: EMCKDKC67 (exp 6/8)
Extra $100 off YAMAHA RX-V867 7.2-Channel Digital Network Home Theater Receiver $429.99 w/ code: EMCKDKC57 (exp 6/8)

Home

Extra $5 off Hamilton Beach 25219 White HealthSmart Contact Grill $19.99 w/ code: EMCKDKC65 (exp 6/8)
Extra $12 off TATUNG THWP-3L Electronic Hot Water Dispenser $32.99 w/ code: EMCKDKC64 (exp 6/8)
$18 off Icon Light RG101A Rogue 1 Black Alluminum Flashlight 50 Lumen $19 w/ code: EMCKDKC69 (exp 6/8)

Monitor

Extra $30 off Hanns-G HZ281HPB 27.5in 3ms Full HD 1080P HDMI WideScreen LCD Monitor $259.99 w/ code: EMCKDKC48 (exp 6/8)
Extra $20 off SAMSUNG 2333T High Glossy Black 23in 8ms Full HD WideScreen LCD Monitor w/ code: EMCKDKC47 (exp 6/8)
Extra $10 off Acer S201HLbd Black 20in 5ms LED-Backlight LCD monitor 250 cd/m2 ACM 12,000,000:1 (1000:1) $99.99 w/ code: EMCKDKC42 (exp 6/8)

Printer

Extra $30 off HP Officejet 4500 wireless CN547A Wireless Thermal Inkjet MFC / All-In-One Color Printer $59.99 w/ code: EMCKDKC46 (exp 6/8)
Extra $33 off Canon ImageClass MF3240 0989B001 MFC / All-In-One Monochrome Laser Printer $69 w/ code: EMCKDKC45 (exp 6/8)

Hard Drive

Extra $5 off Seagate FreeAgent GoFlex Desk 500GB USB 2.0 Hard Drive STAC500100 $49.99 w/ code: EMCKDKC44 (exp 6/8)
Extra $10 off TRENDnet TEG-S50G 10/100/1000Mbps GREENnet Switch 5 x RJ45 104KBytes Buffer Memory $19.99 w/ code: EMCKDKC43 (exp 6/8)
Extra $10 off Seagate Momentus XT 500GB 7200 RPM SATA 3.0Gb/s with NCQ Solid State Hybrid Drive $89.99 w/ code: EMCKDKC25 (exp 6/8)
Extra $20 off HITACHI Deskstar H3IK30003272SW (0S03208) 3TB 7200 RPM SATA 6.0Gb/s HDD $159.99 w/ code: EMCKDKC24 (exp 6/8)
$15 off Western Digital Caviar Black 750GB 7200 RPM 64MB Cache SATA 6.0Gb/s HDD $54.99 w/ code: EMCKDKC23 (exp 6/8)
Extra $10 off Western Digital Caviar Blue WD10EALX 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5in Internal Hard Drive $49.99 w/ code: EMCKDKC74 (exp 6/8)

CPU / Motherboard / Memory

$20 off AMD Phenom II X6 1100T Black Edition Thuban 3.3GHz, 3.7GHz Turbo Socket AM3 125W Six-Core Desktop Processor $179.99 w/ code: EMCKDKC27 (exp 6/8)
$15 off Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor $209.99 w/ code:
Extra $8 off JetWay JM26GT4-A-LF AM3/AM2+/AM2 NVIDIA NF6100-430 (MCP61P) Micro ATX AMD Motherboard $31.99 w/ code: EMCKDKC35 (exp 6/8)
Extra $10 off ASUS M4A89TD PRO/USB3 AM3 AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard $139.99 After $20.00 MIR w/ code: EMCKDKC34 (exp 6/8)
$5 off CORSAIR 4GB 204-Pin DDR3 SO-DIMM DDR3 1066 (PC3 8500) Laptop Memory $33.99 w/ code: EMCKDKC38 (exp 6/8)
$5 off G.SKILL 4GB 204-Pin DDR3 SO-DIMM DDR3 1333 (PC3 10600) Laptop Memory $30.99 w/ code: EMCKDKC37 (exp 6/8)
$6 off G.SKILL Ripjaws Series 4GB 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9S-4GBRL $33.99 w/ code: EMCKDKC22 (exp 6/8)

Computer Case & Power Supply

Extra $15 off hec Black 0.7mm Thickness SECC ITX ITX200A Mini ITX Media Center / HTPC Case $29.99 w/ code: EMCKDKC28 (exp 6/8)
EMCKDKC26 (exp 6/8)
Extra $5 off Rosewill Green Series 530W Continuous @40°C, 80 PLUS Certified Power Supply $44.99 w/ code: EMCKDKC33 (exp 6/8)
Extra $5 off CORSAIR Builder Series CX430 V2 430W 80 PLUS Certified Power Supply $19.99 After $20.00 MIR w/ code: EMCKDKC32 (exp 6/8)
Extra $5 off Antec NEO ECO 620C 620W Continuous Power 80 PLUS Certified Power Supply $44.99 After $20.00 MIR w/ code: EMCKDKC29 (exp 6/8)

Others

Extra $50 off TP-LINK TL-SC3430 1280 x 1024 MAX Resolution RJ45 H.264 Megapixel Surveillance Camera $79.99 w/ code: EMCKDKC72 (exp 6/8)
$25 off Apple - 32GB iPod Touch w/ Camera (4th Gen) $274.99 w/ code: EMCKDKC59 (exp 6/8)
$10 off Infamous 2 Playstation3 Game SONY $49.99 w/ code: EMCKDKC58 (exp 6/8)
$5 off Rosewill RX35-AT-IU SLV Aluminum 3.5in Silver USB 2.0 External Enclosure $14.99 w/ code: EMCKDKC55 (exp 6/8)
$5 off Rosewill USB 2.0 External 74-in-1 Card Reader $9.99 w/ code: EMCKDKC54 (exp 6/8)
Extra $5 off Rosewill RNX-G1 IEEE 802.11b/g A-Type USB 2.0 Wireless Black Dongle $9.99 w/ code: EMCKDKC49 (exp 6/8)
Extra $10 off SYBA SY-PEX40008 PCI Express SATA II (3.0Gb/s) Controller Card $39.99 w/ code: EMCKDKC39 (exp 6/8)

NewEgg has the hec Black 0.7mm Thickness SECC (Japanese Steel Metal) ITX ITX200A Mini ITX Media Center / HTPC Case for only $35 + $0 shipping = $35 shipped. Tax in CA, NJ, TN.

NewEgg has the hec Black 0.7mm Thickness SECC (Japanese Steel Metal) ITX ITX200A Mini ITX Media Center / HTPC Case for only $49.99 + $0 shipping via HTPC0910B = $50 shipped. Tax in CA, NJ, TN.