Gaim is a great program, simple, compact, no spyware/ads, a lot of features
Adium is great for macs...if yo udont really like the iChat interface, or dont really like the program all that much, look at Adium, its feature packed, and has a nice interface.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic