In reply to Jonathan.

I agree that it doesn't look good with quite a few WordPress themes and while it would be great if it did, that's a tough objective to accomplish. Instead, we should be rallying for all or most WordPress themes to add or have core support for bbPress. That way, it's a match and the user doesn't have to do anything except concentrate on organizing their forum. I'm going to write a post in the near future that explains how themes can do this.

I haven't used the forum plugins that are out there in awhile but when I used them a few years ago, they were just as difficult, if not more so to customize.