Ok so thats
CPU - AMD Athlon 64 3200+ Winchester 90nm (Socket 939) - Retail (CP-097-AM) (Socket 939) £129.95
Mobo - MSI Neo4 Ultra (mobo means botherboard, right?)
VC - 6600GT (WinFast PX6600 GT TDH Extreme)
Which just leaves me, I think, RAM, Hard drive and PSU, and I'm sure I can figure out a psu, but what am I looking for in RAM and hard drive?
PCFormat did a test on budget drives, a 200gigabyte drive for about £75 won that I think.