I like my little weber Q that I use for camping, but it doesn't do low and slow, or smoking in any real way. I've found for ribs and stuff, I can generally get good results slow baking them in my dutch oven for awhile,then using the grill just to sear them immediately prior to eating.
The camping time of year is tough on my diet to say the least. I'm staying in this week to avoid the crowds, but my next weekend trip has baby back ribs on the menu, along with dutch oven baked potatoes and corn on the cob, followed up by peach cobbler, alamode of course. The things you have to do while camped high in the mountains, it's a rough life....