Trillian, the messenger client is much better than having the separate clients in a few ways.
- It incorporates 5 or 6 standards into one program (MSN, AOL Instant Messenger, IRC, ICQ, Yahoo IM, and Jabber (Jabber is only in pro version).
- It has some features that the separate clients don't, such as SecureIM, and Smileys.
- It is totally skinnable, so you can have it look like AIM, Windows Messenger, or something that crawled out of the black lagoon.
- It actually works with all the networks it's supposed to.
- It's just totally cool (but thay's my opinion).
Trillian can be downloaded at the site: http://trillian.cc/downloads/
To input all your user accounts, you can use the config windows when you first run it, or go into the preferences dialog using the Menu.