Is there any multi messenger for these protocols: - skype - icq - msn - yahoo I found only chatstat but it's full of bugs...
I used Trillian when I was chatting addict, it supported ICQ, MSN and Yahoo messenger at that time, I have no idea about it now but it must have improved in recent years. You should try that.
I use ever MSN Messenger Live. For me it's the best Chat I like Messenger because is free and very funny. I don't use Skype.
Trillian is good for chatting and IMs. But I think skype is the best for making PC to PC calls or even PC to landline calls.