i was using 1 the otherday which had icq/msn/yahoo/mirc and more in it as well.
Could b worth a look if u use all these progs at the same time and wanna save mem..
Cant remember the name of though soz , I ditched it as I couldnt use the icq send file feature..
I think the program onejaz is talking about is Trillian. I use it and it's pretty good. The only bad thing is that you can't use file transfers (except for irc but I haven't tried it yet) and I don't think you can have group chats either. I use it and I like it. Try it out. But if you send/receive files or have group chats a lot you should go with ICQ but in a future verision of Trillian, they will implement that stuff. I recommend keeping the link if ICQ does use up too much RAM.