Maybe a "meta" category would work. You can stick forums like this in it too, and put it at the bottom of the list. You could also put in a "channel happenings" forum (or simply have a site announcements one where you'd put those in).
You might also want to rename the various categories and forums with more interesting names to personalize the place, like "Sexbot 9000's Ultra Mystery Fun Time Horror House" (I don't know either) for er, one of the RP forums. If you can, change the titles for admins and mods too -- something like "Couch Lint Ball" or what not. It's little things, but eh.
You might want to trim the amount of forums you have -- more tends to spread people out too thin.
As an aside, what do you and co. really want to do with this spot and the associated channel? It seems like a general social hangout, and that's fine, but there's a lot of competition there. More focus might help get things going; a spread of seed topics would assist that. Just putting a forum out there is usually not enough of a catalyst to get much going.