At some point, the UGO Forums will (I assume) come down. It would be nice to have some sort of replacement solution in place before then, so I've installed a WordPress forum for the site that I'd like to test out.
If you're so inclined, give them a test run here, noting of course that this is all just a test and so nothing in there is going to be permanent (probably).
Let me know your thoughts as to ease of use, functionality, and just what you think of them overall. If they'll work, great, and if not I will try something else. The advantage to this particular forum from my perspective is that it was really easy to install and works within WordPress itself, but that doesn't mean anything if it doesn't do what you need it to do.
Thanks in advance for anyone who wants to offer their feedback!