mikey - i think it would have been more accurate for me to say that the creosote is the condensation, not that condensation leads to creosote. my major was history rather than science, but i have observed that as long as one is running a good, hot smoker there isn't much of a danger of creosote. moisture is a good thing, but cold moisture in a smoker that isn't hot seems to be a bad thing.
take a look at dmack's linnk and also my d/l link to the BBQFAQ - they probably explain it better than i can!