I'm working on conversions right now, and I can tell you it's not going really smoothly. There are bright spots, though.
I've converted the announcements forum successfully. Piece of cake. One of the nice things is that it brings over the user IDs that are present in that forum. If you did not explicitly register on this board, but have an EZBoard account and your username is on the memberlist, contact me (Gambit) for your password.
The bad news is mostly that not every forum will convert properly. The applications forum, for example, has some HTML errors that blow up the converter. I haven't yet found the problem well enough to fix it. The rest of the bad news that I've found so far has to do with images. Not that big a deal, but kind of ugly when they don't come across and you just have a dead image box in the new forum.
![Sad :(](./images/smilies/icon_sad.gif)