Messengers

ok, so i finally got my internet GPRS working. raa!
so what is a good IM program for msn? i know agile messenger is ment to be ace, but i could only sign on to that once. since then, ive had no luck with it. any suggestions for that?
and then theres IM+, but i found that to be very unreliable as you never know if contacts get your messages.
Coojo? well thats just a trial and although looks nice, it pissed me off for some reason and i dont know why.
so could anybody reccomend any other reliable, semi good messenger programs?
thanks