I need help building a custom computer, help me pick the parts!?

Hi, I am looking to build a computer on my own and I need help because I honestly do not know which parts to choose. So I am asking you to basically pick the parts for me! I am looking to spend around 600 dollars. Thank you very much for your help, it is very much appreciated.I need help building a custom computer, help me pick the parts!?
Total $591 (not counting shipping),



(Motherboard) Gigabyte GA-EP43-UD3L, $80,



http://www.newegg.com/Product/Product.as鈥?/a>



(Case, Power Supply) Combo: Antec Three Hundred; Antec Earthwatts EA500 (500 watts, 80plus efficient, 34A +12V), $115,



http://www.newegg.com/Product/ComboDealD鈥?/a>



(CPU) Intel BX80571E7500, Core 2 Duo E7500 (2.93 GHz, Wolfdale-3M), $140 free shipping,



http://www.newegg.com/Product/Product.as鈥?/a>



(RAM) G.Skill F2-8500CL5D-4GBPK, 4GB (2 x 2GB) DDR2 1066 CAS5, $50 free shipping,



http://www.newegg.com/Product/Product.as鈥?/a>



(Video Card) Sapphire Vapor-X Radeon 4850 512MB, $110,



http://www.newegg.com/Product/Product.as鈥?/a>



(Hard Drive) Western Digital WD6400AAKS, 640GB SATA 7200RPM, $70 free shipping,



http://www.newegg.com/Product/Product.as鈥?/a>



(DVD-RW) Lite-On iHAS124-04, 22X DVD-RW SATA, $26,



http://www.newegg.com/Product/Product.as鈥?/a>I need help building a custom computer, help me pick the parts!?
try these sites, best around for parts



tigerdirect.com

ibuypower.com