I am planning on running Win7 in 64 bit so yeah looks like 4GB for sure.
Using the least amount of money (hence DDR2, C2D E8500) maybe I can plump for E8600 $350AUD :( when prices drop a bit
I will be scavenging parts from current rig so will only need CPU,RAM and MOBO
CPU: E8500 $250AUD
RAM: Ballistix Tracer 4GB PC2-6400 $120AUD (incl shipping from US)
Corsair 4GB PC2-8500 $150
MOBO: DFI x48 T2RSB PLUS $200
DFI x48 T2RSB Plus is DDR2 board.
Current Rig is :(
http://www.amdgeeks.net/overclock/856
athlon 64 3700+ @2.8GHZ
DFI Expert
2GB Ballistix DDR 466
9800GT
480W PSU