2 gig ram go crossfire mobo x1900 gfx and as Gareth says a 4800 or a 4200 at least.If you want better memory performance buy some nice xms4000
will clock nicely then
Coolermaster do some nice cases
Suck air in from the from bottom of case and out top rear
I like the hiper modular powersupplies
edit memory here top one
http://www.overclockers.co.uk/acatalog/Corsair_XMS.html