That motherboard won't be compatible with Bulldozer. As far as I know, the 800 series chipset is a nogo and the white AM3 socket definetly isn't compatible.
I'd recommend to hold out for a few more months. Bulldozer is just around the corner and Sandybridge chips will drop in price when it is finally released.
Alienware M11x R1 Netbook:
1.3GHz Core2 Duo U7300 (OC'd to 1.7GHz) | 8GB Corsair DDR3 1333MHz | nVIDIA GeForce GT 335M 1GB/Intel GMA 4500MHD Hyrbid Graphics System | Western Digital Scorpio Black 500GB | Microsoft Windows 7 Home Premium 64-bit
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