A free virtual PC environment for testing purposes. Might be useful when you are trying out various drivers, applications etc. Worth taking note of anyway.
http://www.snapfiles.com/get/twtimefreeze.html
I've used this site (snapfiles) for years quite safely for apps. They give warnings about any nagware etc that may be optional or included so you can mitigate appropriately. Never had any virus or anything dodgy from them.
Cheers
Brent