Trouble with typing when it is that early in the morning. Yes, I meant a 32-bit bus with 4GB of RAM.
Been there and done that many times, my FRiend ;)
If you do update your system (and choose to stick with AMD), make sure to buy Over-clocking ‘ok’ type hardware... It, obviously, is made to overclock... I do that (also with AMD) but I never overclock.. it extends the lifetime of the hardware by years.. ;^)