I was on this drug from October '06 through early February '07. I can assure you, I did NOT get a flesh-eating disease, though I was just as creeped out about it as you are!!
I did have HORRIBLE side effects, however, but I don't want to scare you. As you say, it will affect everyone differently, almost certainly. I was actually prescribed Lamictal for a mis-diagnosis of bipolar disorder; I was then prescribed Seroquel to combat the effects of the Lamictal. In the end, a different psychiatrist noted the mis-diagnosis, upped the Seroquel, took me off the Lamictal and I am like a new person. In fact, without this, I wouldn't be on these boards, because I was not stable enough to be committed to losing weight (or anything else for that matter!!) before March.
I doubt this story will help you, but I am happy to discuss this further if you feel it is helpful in any way.
By the way, you are SUCH an inspiration to me - congrats on all your hard work and success thus far!
Heather