. I hate the fact that Microsoft and Intel are in cahoots with one another, and 64Bit OS will probably come when Intels lame 64Bit chips are released! (BOOOO INTEL, YOU SCUM!!)
Personally, I know that main difference between the FX series and normal Athlon64 is their cores, and the fact that the processor FX series is optimized for visual processing with its Sledgehammer core. Other than that, no differences. If you are going for gaming, go FX series, otherwise if you are into games, but not a hardcore gamer, go standard ATHLON64.