[peanut]

I have an E6700 and I use 64bit, I can't see that much difference, somethings are a lot quicker, but not sure if it's down to XP or not. I can extract a 700mb rar files in 4 seconds flat, yet it can take 25 mins to fix 1 knackered par2 file from a dvd using quickpar.

To me it's good and bad, but not bad enough to say no it's not worth it. Well that's my opinion anyway. Driver's ain't that much of an issue now unless you need logitech or a few other brands.

I would dual boot if I could, but it's a nightmare going from 64bit (default) then adding a 32bit dual boot OS (easy from 32 to 64 though).