should i upgrade my vista to 64 BIT from 32?

for a long time i thing that i shuld install 64 over my 32 bit.

befor i am doing it i want to ask few questions:

dose all the programe that working on my 32 bit vista will work in the 64 bit too?

will i get higher FPS in game? the whole system performence of mine will incriss? thnks

You will not gain better performance in games, only the possibility to have more than 3gb Ram

Also you will need programs for 64bit Vista