get 6 cores if you don't want to cheap out on the processor and mobo..
http://www.ncix.com/products/?sku=39...ufacture=Intel
and combo deal it with:
ASUS P6TD Deluxe X58 LGA1366 DDR3 i7 3PCI-E16 2PCI 2GBLAN SLI CrossFire 1394a eSATA Motherboard
And u gotta get triple channel ram if u wanna go with the 6 cores.