Looks a lot like me Cobb SS cooker, which I read about here on Airforums...
Cobb Portable Grill from Cobb America - The Ultimate Cobb portable grill, BBQ, Smoker and Cooker.
Except the Cobb won't accept a dutch oven...
I love the Cobb for it's easy and efficient operation - most meals use only about 8-10 briquets...
I cooked a whole chicken on the Cobb using 10 briquets, and added some wine/water into the 'moat' in the bottom for added moisture, and the chicken was great after about one hour...the 'dome' on the Cobb gives the dutch oven effect...
The whole rig is SS, so no rust, and when home, you can toss it all in the dish washer for a good cleaning...
I actually bought ours online from Target for the best price I found for a grill with some options...
The Volcano looks like a great oven as well...