chat plugin like meebo

Hey everyone, I was looking for a nice little chat plugin I could put in my sidebar, and came across meebo, and it’s really cool, only, I don’t want to have to log in to meebo every time I’m on my site. I was wondering if any of you know of a chat plugin for wp that would show me as online if I’m simply logged into my wordpress site? Just a little easier than logging into meebo every time.