If you're saying 32 bit drivers can run in 64 bit windows, you're dead wrong. If you have a webcam (Other than Ms and Logitech), or any 3rd party hardware, good luck on getting drivers. Also, things like ConvertXtoDVD, which uses pattincouffin.sys drivers, will not work. Anything that installs virtual drivers will not work, and anything that has a 16 bit subset will not work.

And yes, there are drivers for the main things, but they're about 10x as buggy as the 32 bit versions.

As far as I know, you can emulate 32bit applications in Windows Vista x64, but not drivers. Though I suppose some XP x64 drivers might work under Vista x64, so you might want to check that as well.

Yeah I am probably wrong on the bit about 32bit drivers working on 64bit.
But there are drivers out for 64bit and they're not buggy, all drivers I have work flawlessly, and vista even installed drivers for networking and other bits n bobs easily. Only ones I needed to install myself was graphics. and nvidia have stepped up there releases, 174.70s out and it works just fine. I think they are waking up now.

Well, I've seen quite a few horror stories on YouTube about nvidia + vista problems.

Anyway, I should be getting 64bit soon, if I get my HP dv6700 laptop, so hope it goes smoothly for me as well. :)

Meh. I think all the problems are solved. It should go smoothly for you, but I don't know if you'll benefit with 64bit on your laptop though. If I were you I'd go for 32bit.