I cater (usually 30-50 people events) and cook for home (family and friends) and LOVE my LANG 36" Hybrid Patio Smoker (with the 30" charcoal grill on the front). Only $1500 plus delivery, but you should be close enough to pick it up and save a couple hundred.
I've had 3 butts and 3 racks of ribs on the smoker, with two dozen thighs on the grill portion (offset grilling) at the same time! Great for catering and even competing for some comps.
As far as temp control and fuel - I can get 2-3 hours at 275 degrees between opening the firebox!
If I was to do it over again - I'd get the LANG 48" Hybrid. Just saying!
CMJ - KCBS
CBJ - MBN, NCBS, NCPC
OBJ - BBQCritic.com
CTC - KCBS
Pitmaster and chef - "4 Lil' Pigs" Competition BBQ Team
Author of "A 'Q' Review"
Lang Hybrid Smoker, BDS, Holland "Epic"