Barbecue may be just the beginning. I was exploring the Internet and discovered a wealth of cooking information on Dutch Oven cooking. Chuck wagons, Scout gatherings, hunting lodges. There are tools (many of which have been used for centuries) and books. There is even a Dummies book set which includes some cast iron. (Those Dummies people are no dummies.)
This might have been an "oh, that's interesting" thing until I found people giving advice as to how to have these open fires anywhere. Yep, the old barbecue can be your fire box. Or, as one person recommended, an oil drip pan from the auto parts store. The bottom quarter of an oil drum could work. Or that back-yard fire pit that was just there to take the chill off of evening conversations in the back yard.
I am not yet ready to do this next step in outdoor cooking. I am still just getting started with the Silver Smoker. However, I see it as a logical next step, and it looks like fun.
On the whole, I think I am addicted to the smoke. And eating.
I think this will be fun.