Update:
The Chat Area has undergone some changes. The Chat room is now built into the forums. If you are registered on the Forums, you can use your user name to chat with. When you are logged in, just visit the chat room link located on the top menu bar. http://dreamcast-talk.com/forum/chat.php
This is a much simpler way to chat. NO extra registration needed. Hope to see you guys in there, have fun!
Note: as simple as this chat room is, it is still not compatible with Dreamcast Web Browsers.