I actually do the same thing, lol -- there's a lot of people there now, so I'm avoiding the thing like the plague. 3:
I believe that a second chatbox would be a viable option. It doesn't even need to be installed on the site -- just put a link of it on the navbar at the top of the page, and we're good to go. Tinychat and XAT are autorefreshing chats if that's what everybody wants, but I personally would go for the Cbox -- you can administrate your cbox through the website, deleting messages, reporting spam, and even banning IP addresses (for a time for permanently) if need be. Plus, the cbox format is nice and clean, unlike Tinychat and XAT (which I dislike greatly). The only thing people might not like about the cbox is that you have to refresh it manually with a little refresh button unless you pay for premium.