Free Windows XP Pro
This is truly amazing. http://www.windowsmobiletraining.com/ offers a free copy of Windows XP Pro, and other goodies as well. You just have to complete their “training” course. It’s 100% legit, and my copy is on its way 
(If you’d rather have a keyboard / mouse combo or Office XP, you can! Just choose the appropriate option!)
Neowin has more info.
*sigh* They seem to have discontinued this, as even when I sign in with my .net passport, there aren’t actually any options to do things, and it says they’re remodeling to accomodate the demand…
Bah.
i’m waiting on my IntelliMouse (or whatever its called), thats the best that was to offer in the UK version…
it was that, some XBox games (i don;t have an XBox), a microsoft branded hat, or a microsoft branded thermos…
Owch. Sorry Margaret… Ryan Cautrell just got his like four days before your post :p