to be honest for the money, i would go for an amd xp3200, then you can get pc3200 ddr memory and it will all be running at 400 fsb speed.
Also, for quietness, get seagate barracuda hard drives, and a good quality psu, such as an enermax (these are very quiet), or even a tagan.
try http://www.overclockers.co.uk/
http://www.tekheads.co.uk/s/index