Just make sure that everything you buy is compatible. Check the memory speeds the motherboard can take (DDR2, DDR3 etc) Make sure the socket of the CPU matches the one on the board etc. Put one together yourself on say Scan.co.uk, screen print the basket and post it on here. Built 3 computers from scratch now, gonna water cool it one day I think. 2 loops, one for the CPU and one for the GPU