I've recently aquired an Apple Mighty Mouse. It's great. I love it. I've said it before, and I'll probably say it again, but everything works the way I always wished my Pro Mouse would.
That being said, I'm kinda disapointed that I don't get 100% of the spiffy features of my 50$ mouse.
While setting my Expose prefs after restoring my mac today, I noticed that not only can you select actions for "hot corners" but you can assign Expose functions to mouse buttons as well.
And wouldn't you know, I can assign functions to buttons 3 & 4!!!
Just a lil bit of joy on a dark day