So having recently bought a dedicated smoker, I have a bit of info for you.
1. a great resource is http://www.bbq-brethren.com/forum/forumdisplay.php?f=5
2. If you need a starting point idea of time / temperature http://meatsmokingcalculator.com/
3. I have tried alot of these and they are very good... https://www.google.com/search?q=alto...t=firefox-beta
4. the smoker that I got: http://www.motogrrl.net/meatking/index.htm
He is down in Dearborn and makes them to order.