What cross-platform messaging system are you folks using these days? 

In the rare moments I'm actually logged in at home, I'd like occasionally to chime in on IM with ya!  Unfortunately, everyone's got a different preferred platform, and instead of managing the major clients all at the same time, I figured I would see what ya'll are using:  Trillian, Miranda, Jabber?  

If you have an opinion about said methods, please let me know.  Thanks!

Right now I only have a YIM account... so sad, the mundane unconnected to the aether.