Buying a PC..Which one?

[Apathetic Lurker]

Which one will give me better bang for the buck? I'm procrastinating too much and the wife is getting on my case to just go buy one.

Every thing else is pretty much interchangable


AMD Phenom II x6 3.2GHz
8gb ddr3 1333
1 TB SATA III
6950 2GB Radeon
USB 3.0 ports
Blu-ray drive
$1399.99

AMD Phenon II x6 3.2
8 gb ddr 3 1600
1 TB SATA II
6850 1GB Radeon
USB 2.0
$999.99

Intel i5 2.8GHz
6gb ddr3 1333
1 TB SATA
x2 5670 1GB Radeon ( crossfire mode)
USB 2.0
1349.99
weak-ass 525w ps so it would need eventual change.... the other two have 800w ones