Did you know...? - MS PowerPoint Viewer 2007 loads Vista fonts on your XP machine?
That's right font fans! Kevin Purdy has a featured article on Lifehacker.com (click on the title of this post to go there) where he details how to get those cool Vista fonts LEGALLY loaded on your XP machine.
For those who just want to get down to biz, here's the d/l for PPT Viewer 2007 from Microsoft.