I understand how to put the computer together, but I'm pretty much a noob when it comes to picking out parts for the system. I just wanted to get some feedback for the parts that I selected for my machine. If you think something that I picked is bad please let me know why and suggest an alternative. If you suggest an alternative please try to keep it in the original parts price range. Any and all replies are much appreciated.

DVD Drive - Newegg.com - LG Black 20X DVD+R 8X DVD+RW 10X DVD+R DL 20X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache E-IDE/ATAPI 20X DVD±R DVD Burner with LightScribe - OEM 26.99
LG Black 20X DVD+R 8X DVD+RW 10X DVD+R DL 20X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache E-IDE/ATAPI 20X DVD±R DVD Burner with LightScribe - OEM

Case - Newegg.com - Antec P182 Gun Metal Black 0.8mm cold rolled steel ATX Mid Tower Computer Case - Retail 139.99
Antec P182 Gun Metal Black 0.8mm cold rolled steel ATX Mid Tower Computer Case - Retail

HDD - Newegg.com - Western Digital Caviar SE WD5000AAJS 500GB 7200 RPM 8MB Cache SATA 3.0Gb/s Hard Drive - OEM 99.99
Western Digital Caviar SE WD5000AAJS 500GB 7200 RPM 8MB Cache SATA 3.0Gb/s Hard Drive - OEM

Video Card - Newegg.com - SAPPHIRE 100218L Radeon HD 2600XT 512MB 128-bit GDDR3 PCI Express x16 HDCP Ready CrossFire Supported Video Card - Retail 89.99
SAPPHIRE 100218L Radeon HD 2600XT 512MB 128-bit GDDR3 PCI Express x16 HDCP Ready CrossFire Supported Video Card - Retail

Power supply - Newegg.com - CORSAIR CMPSU-620HX ATX12V v2.2 and EPS12V 2.91 620W Power Supply 100 - 240 V UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick - Retail 169.99
CORSAIR CMPSU-620HX ATX12V v2.2 and EPS12V 2.91 620W Power Supply 100 - 240 V UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick - Retail

Memory - Newegg.com - G.SKILL 4GB(2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1000 (PC2 8000) Dual Channel Kit Desktop Memory - Retail 109.99
G.SKILL 4GB(2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1000 (PC2 8000) Dual Channel Kit Desktop Memory - Retail

Processor - Newegg.com - Intel Core 2 Quad Q6600 Kentsfield 2.4GHz 2 x 4MB L2 Cache LGA 775 Quad-Core Processor - Retail 254.99
Intel Core 2 Quad Q6600 Kentsfield 2.4GHz 2 x 4MB L2 Cache LGA 775 Quad-Core Processor - Retail

Motherboard - Newegg.com - ABIT IP35 Pro LGA 775 Intel P35 ATX Intel Motherboard - Retail 174.99
ABIT IP35 Pro LGA 775 Intel P35 ATX Intel Motherboard - Retail

heat sink - Thermalright Ultra 120 eXtreme
Thermalright Ultra 120 eXtreme

120mm fans 2x low speed - YATE LOON 120mm Case Fan - D12SL-124B - UV Blue Frame with 4 Blue leds $10
YATE LOON 120mm Case Fan - D12SL-124B - UV Blue Frame with 4 Blue leds

120mm 1 x MED SPEED - YATE LOON 120mm Case Fan - D12SM-124B - UV Blue Frame with 4 Blue leds - Medium Speed $5
YATE LOON 120mm Case Fan - D12SM-124B - UV Blue Frame with 4 Blue leds - Medium Speed

That will work together. There are a million different combos you could have. We are currently working on some recommened builds and part lists for PC builds. A_W should see this post he will have some suggestions for you.

Looks pretty good. I would suggest these instead though.

Newegg.com - GIGABYTE GA-P35-DS4 Rev. 2.0 LGA 775 Intel P35 ATX Ultra Durable II Intel Motherboard - Retail

Newegg.com - Crucial Ballistix Tracer 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail (2x if you really need 4GB)

Newegg.com - GIGABYTE GV-RX387512H Radeon HD 3870 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail

Newegg.com - PC Power & Cooling S610EPS EPS12V 610W Continuous @ 40°C Power Supply 100 - 240 V UL, cUL, CE, CB, TUV - Retail

And this harddrive instead. (AAKS instead) Newegg.com - Western Digital Caviar SE16 WD5000AAKS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s Hard Drive - OEM