I have a simple moodle chat module to integrate the two. And now 123 Flash Chat provides 2 free solutions for webmaster.
1) Trial version of 123 flash chat server software
Advantages:full function. Your users can enjoy all 123 Flash Chat’s optional modules, including audio/video chat.
Limitation: Only 10 concurrent users may use the room and you need to host by yourself.
2) Free 123 Flash Chat Host
Advantages:It’s hosted by 123 Flash Chat free of charge, no limitation to the number of concurrent user, and provide basic chat function.
Limitation: Some management functions are unavailable.
I am await here for your suggestion!