I'm sorry, but I didn't see any parts that I would use in that build. This build comes in just over $500 and would be a much better machine.
Antec Three Hundred + BP430 Black Steel ATX Mid Tower Computer Case 430W Power Supply - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16811129065 $99.99
AMD Athlon II X2 250 Regor 3.0GHz 2 x 1MB L2 Cache Socket AM3 65W Dual-Core Processor - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103681 $79.00
GIGABYTE GA-MA770T-UD3P AM3 AMD 770 ATX AMD Motherboard - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128392 $84.99
GeIL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10660) Dual Channel Kit Desktop Memory Model GV34GB1333C7DC - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16820144264 $74.99
Western Digital Caviar Blue WD3200AAKS 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136074&Tpk=wd3200aaks $49.99
XFX HD-485X-YDFC Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150337 $109.99
SAMSUNG Black 22X DVD+R 8X DVD+RW 22X DVD-R 16X DVD-ROM 48X CD-ROM 2MB Cache SATA DVD Burner LightScribe Support - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16827151188 $28.99
Total - $527.94
I would highly suggest considering getting 64-bit Vista with a free upgrade coupon to Windows 7 so you can use all 4GB of RAM. You can save $15 if you get the OS in a combo with the case listed above.
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.235877.11-129-065