I think it will work as it doesn't make copies of the device drivers etc on your 32 bit system. It will only copy your personal folders (My Documents, My Music etc.) and your emails and contacts and IE bookmarks and cookies etc. I would recommend doing a full backup of your system first just to make sure you don't loose anything when you format and upgrade to your new 64bit operating system.
Snarks
My Computer
At a glance
Windows 7 Ultimate x64 SP1Intel Core 2 Duo @ 2.4 ghz4 GBNvidia Quadro 7700x
I'm not upgrading the machine. I'm buying a new one. So both machines will be available during the transfer. My concern is the transfer wizard seems to have a 32 bit and a 64 bit version. Not sure which to use.
Thanks