Just wondering if it has ever been discussed here before. I could use one as well as some of teh other posters here.

The vBulletin authors are looking into adding one to a future version of the software. It's too bad that they're apparently not considering integrating pspell into the software -- I've used that with some PHP applications I've written, and it's rather nice.

It would be a very nice feature to integrate. However, I find most of the spell problems come from people who might be in too large a hurry to even use this feature. That would be sad, however, I need it on occasion, so I'd certainly welcome this feature.