Forum Integration

Anyone here have a forum integrated into their site. I remember a long time back there was a vbulliton bridge. But as I am not sure how much use a forum would get for my site I was thinking more the free script route like phpbb or mybb rather than paying a lot for ebullition. But ideally I want account synchronisation across both platforms.

I know flynax would probs build a bridge as customisation but how much this would cost I do not know.

Would be nice if there was a flynax forum plugin that integrates directly into the site. am sure it would be a great addition wether its for a fully fledged forum or as a support forum etc then there would be no cross platform issues.