lol, i dont know where you people get your facts from, the 4000+ could not outperform the FX-55. the 4000 is just a renamed FX-53, which is older and slower than the FX-55, im not saying its slow, far from it.
The best gaming system would look something like:
Abit motherboard, with SLI (not out yet, due in soon, its like the asus one with SLI, but better.)
AMD Athlon FX-55
4x1024Mb sticks of PC3200 (or any other faster ram if you wanted to overclock)
2 6800Ultra EE's (best card out at the moment)
4x WD 148Mb Raptors ( 2 arrays, both RAID 0)
plextor optical drives
2.88Mb floppy drive (make that 2... lol)
i think thats about it.... anything of importance anyway because the other stuff like PSU and case is a matter of opinion, so in the true spirit of posting nicely on these forums, i wont start a flamewar by suggesting a case