Moved to Suggestions section.
That's strange, I was actually thinking of this idea whilst doing my paper-round this morning. What a coincidence.
To the subject, even though I was thinking of the idea myself, I think that teamspeak isn't really needed for a forum. It's ment to be text-based, so having a teamspeak channel would be quite pointless. I do have alot of experience with teamspeak, and have had my own server with around 30-50 people on it perday, in the past. So I could run it if we decided to get one.