The AM3+ socket will be the premier socket for higher end AMD chips. The FM1 socket is for processors with the embedded gpu, which isn't as powerfull as the dedicated graphics card. Also the FM1 is generally used for basic computers for users with limited needs. Granted it does what it needs to perfectly. So if you want a higher end cpu in the end, stick with a am3+ socket board. Also, I would suggest the Phenom II x6. The athlon doesn't have L3 cache which is proven to help out on higher load functions.