Vista 32bit or 64bit?

As title really, regarding Vista, which flavour to go for/use 32 or 64 bit? whats the pro’s or cons of using either?

Curly

The biggest “con” for x64 is this:

Remember the box in XP concerning driver signing? You could install any old driver as long as you clicked the “Yes” button. Vista 32-bit allows this, x64 does not officially support it. So if you can’t get the drivers, DONT install x64.