What is your needs with the smoker? Backyard, catering, competitions, vending, resturant use?
That said I was in the same boat, I took this advice and it paid off. Get a smoker bigger than you think you need. So I went with the Backwoods Comeditor and from there I started catering and won several BBQ Competion awards.
My advice is the same look at your needs, future unforeseen use to grow in and rock that bad boy when you get it home.... I love backwoods but humpfys has my eye for the next water cooker.