Greetings to all. I am a veteran griller but a rookie smoker. I'm only now about to purchase a smoker and i would like to get some opinions if possible. I would like to purchase a smoker that doubles as a charcoal grill as well. Are these suitable for smoking? I see quite a few out there at places like Lowe's and Walmart for $100+. Any suggestions/opinoins/advice? Thanks guys!