Elf, I started smoking on this unit, as did many, many other budding BBQ enthusiasts.
Contributors to the BBQ Forum The World Famous BBQ Forum Since 1995 serving the Barbecue World
posted all kinds of helpful hints when I was first starting. Lots of people suggested modifications to the smoker, which I eventually did, and they helped a great deal.
One of the best (and most exuberant) explanations of the mods are on my friend Randy's site Welcome to RandyQ's Barbecue Ramblings
Click on the picture of the Brinkmann to get probably more info than you ever wanted