The question you should really be asking is "why should I stick with 32bit..."
There really aren't many reasons to stay with 32bit. The only issue is old hardware compatibility (scanner, printed etc). The vast majority will have 64bit drivers though. But that's really the only thing you need to look out for. I've been running x64 since Vista was released.
Thanks for your replies. I think with my new build I will be going with windows 7 64 bit. I will be using my new build for gaming, watching DVD and Blue Ray, Internet, using a midi keyboard, MS office. How much memory would you install?
I have used XP64 since pretty much the week it came out.
Sure at teh very beginning, I had some driver issues, USB Modems and WebCams and my Printer, but since then, I am now using a router, and have got rid of my old C42 ( Which is actually now supported by the way ) and a new WebCam.
To use Driver support as an excuse is complete ignorance.
I have only one game that does not work in 64Bit, and thats WarHammer Fire Warrior, but 100% of all my software works better in 64Bit than it does in 32
To even consider going back to 32Bit after about 5 or 6 years ( Not timed it ) of me using 64Bit would be a bloody retarded thing to do!
Even asking such a question, I am afraid is really confusing?
I suppose the fact that 32Bit software is still being written is also addign to the confusion, but there you go... They have to support the slackies dont they?
Another vote for 64 bit here. Been using this version ever since I had a new laptop july last year, and then with my new desktop machine in april also had the 64 bit Vista, and have not looked back since