Trillian Pro v2.0 has been released. If you've ever used Trillian or Trillian Pro, go buy/download this update. Lots of new features—plus it works with the newer MSN and Yahoo protocols, so you won't get that annoying message that you need to update your Instant Messenger (IM) to the latest version of the software. I'm still playing with the new version, but at first glance it's much faster and the new features are really nice. I also like the fact that you can now add other IM client's, like Jabber, via it's plug-in model. Nice touch!
If you currently use more than one IM client and you're running Windows, do yourself a favor and spend the $25 (US) to buy Trillian Pro v2.0—it's well worth the money. The simple fact I only have to load one client really speeds up my machine and saves the memory for other real world tasks—plus having one nice interface is immensley more intutive to use. I can't imagine ever going back to the individual clients again.