Q: and will alot of programs work on it or no.
A: all 32-bit progrmas will work on 64-bit. quite a few modern games include 64-bit excutabels too, so games such as crysis will run faster o na 64-bit OS. It's too much bother for me to swap now, but i wish i had goen for 64-bit when got my PC, so much more power.