Rather than it's own forum with a description and picture on the main page, why not a sub-forum, with a link to it from its parent forum (think what's done with the D2 sub-forums, and the FF sub-forum)?

If that is done with all sub-forums added (again I'm thinking consoles here), then it kills two birds with one stone - the extra forums are added, yet the board maintains its uncluttered appearance.