well, hes building a new computer. if he has a current AM3 chip, what was he upgrading from(AM2+ mobo?)
otherwise, a Sandy Bridge build( or wait till BD comes out) would be more suitable
why SB? (go google benchmarks, you'll see a i5 2500k beats out an AMD hex core on almost everything, and power consumption is a lot lower)
P67/H67 (SB highend/midend mobos) have USB3.0, SATA6
$220 i5 2500k
$130 asus p8p67 has 4 USB headers
$350
even the puny i3 2100 ($120 or less) can hold its mark against an x4
http://www.anandtech.com/show/4083/...core-i7-2600k-i5-2500k-core-i3-2100-tested/15
I say wait a bit for Bulldozer to come out