ICQ
Well, if you don't have ICQ, GET IT!!!
Seriously, you havn't lived until you've tried it! I dare say that it's the best Chat, FTP program available. It seriously kicks mIRC's arse, let alone any web based chat pages, like www.chat1.com!
Oh, I got a little sidetracked there! Here it is, in all its beauty...
:-)
ICQ
My sacred ICQ number is 31761640
For ICQ Utilities, go to the downloads page