I voted for Java Chatterbox, even though I currently use the HTML-based on here more. "Why?", you ask. (Ask now, darnit.)
Because I use it on www.Everything2.com, where the chatterbox is busier. Just you all wait until PerlMonks gets as talkative as E2... the auto-updating clients will become more and more attractive.
(my problem with TP is that I broadcast to too many people)

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