alright, ok, so,
core 2 duo e8500
radeon 4870 512 mb
4 gig of ddr2 - 6400
i think you can find a mobo, they take ages and i cbf finding the right one for your price range
500 gb seagate barracuda 7200.11
650/850 (650 id say min, ive got an 850 just incase) watt power supply, may i suggest a coolermaster realpower pro.
case of your choice, again, either coolermaster or antec
wireless?
asus sata lightscribe dvd burner/ drive (cant remember model but its around 40 bucks)
anything else im forgetting....?