Not to get in the middle of the Gas vs. Charcoal/Wood debate, but I like to use the best of both.
Personally, I don't like the stainless steel grills because I tend to be lazy and not clean them immediately. The stainless steel (to me) doesn't offer the utility that a good black gas grill offers. Maybe not as pretty, but more "forgiving" when you forget to wipe off a spot.
We bought one from Home Depot about 3 years ago for $400 with triple inside shelves, twin side burners and have been very happy with it. If it wears out in a few more years, we could scrap it, buy a new one, and still come out ahead.
Regarding the flavor, we have a small iron box that we sit on top of the burners. It's basically a box the size of a thick book with a removable lid and lots of holes. We soak the wood chips in water for a half hour and then load the box with the chips. You get the wood flavor but with the control of the gas heat. And it's easy to just empty the ashes out of the iron box. Plus, you don't have to clean it since it's just going to get more wood chips in it the next time!
Rub a Dub