You may know this already, but the "Win+Pause" key combination (press the Windows Key (on keyboards that have it) and the Pause/Break key) will bring up the Windows XP System Properties dialog box, which I occasionally need to access to setup global environment variables.
I learned this trick while reading the Maven book that Trygve Laugstøl suggested. (BTW, the book is a pretty easy read. It's a free book but you have to give them your email address to download it. And they do a nice job of following up the download with several email inquiries.)