Does anyone have any experience with the AMD bulldozer stuff? I heard a while ago that it was a failed experiment, but they weren't giving up on it. Now I see the 8 core CPU is going for under 200$, and I don't think I can resist. Anyone got one? What's the performance like? Anyone got reasons against?

I'd be looking at:

AMD Bulldozer black edition (AMD FX-8120) 8 cores @ 3.1Ghz.
Gigabyte GA-78LMT <32Gb RAM 1333MHz DDR3
Seagate Barracudia 7200 RPM / 1TB
2x8Gb DDR3 1333MHz RAM
AMD Radeon HD 6450 w/ 2Gb DDR3
My PSU, it's some 650 watt cheapo thing.

Already got the graphics, RAM, HDD, so would just be buying the CPU / MB.