After thinking for a while I decided to upgrade to Dapper, after downloading the packages and logging in for testing the newest changes in GNOME, the first thing I noticed is the faster loading and lowing memory usage, only 88-90MB for the GNOME Desktop! Awesome!
I'm also testing Gaim 2, looks very nice... ;-)
This recent upgrade, upgraded Xorg... now when typing the entire session flashes... looks like a broken TV... but only when typing... really weird...
UPDATED. Horizontal/vertical sync related problem... don't know.. but with 1280x1024 resolution.. doesn't seems to work... 1024*768 does the trick, must wait for updates.