I can't believe I went and bought the Leopard. Must be my love of cats.
Some nice eye candy, but the thing that surprises the crap out of me is that the spell checker is on right now as I type this message. Every time I screw up, a red dotted line appears. Very cool for someone like me.
Time machine is a hog when it comes to disk space.
Mail is a very good upgrade.
iCal is beefier, which is great since I really depend upon it.
Downside: no more Classic support. Now I am going to have to boot into OS 9 and convert all my WordPerfect files. shit.