I've tried to cut down on the number of posts that just point people to other posts.  This is one I have to propogate, though.  Winbeta notes thats Trillian 3 is on its way, with a beta expected soon.  I have been a diehard trillian user for a few years now, and can't wait for a new version.  Not that there is anything wrong with this one, but I can't wait to see what they have up their sleeves. 

Check it out here