I've been on the lookout for a decent forum package. I don't particularly like forums, but users seem to for one reason or another :-) Open Source is nice, but there's a lot of badly done OSS forums. I'm willing to spend money if it's good.

There's a few I ran across that stuck out:

• phpBB -- this is commonly used, seems to work well, reasonably pretty, etc etc. But, it has the track record of BIND and Sendmail in the 90's. For some of the security concious I know, it became the first source of a system breakin, and there's even worms running around knocking at it's doors. Ugh.
• Burning Board -- Wolf Labs offers Burning Board. It's half decent, costs about $50, and seems to be in use in at least a few places. I noticed it at the 77's site (which, incidentally, will be on tour in 2 weeks with Michael Pritzel, woohoo!). What caught my eye about this wasn't the product, it was the website. The company is clearly German. But on the top of their site is a pretty picture of Toronto. Odd.
• vBulletin -- this seems to be one of the more popular ones. It costs $160. There seem to be a lot of organizations with it in place for support forums, but it doesn't have the same aweful track record as phpBB.

Are there other decent forum packages available that you'd recommend?