Well, if it helps, I decided against the oven-grill. As Andy mentioned, it is nice to be able to see the temp inside the cooking/baking area. Most gas grill hoods now have a thermostat. So if I want to keep something at a constant temp, I can simply use the hooded area with indirect heat and get the same effect. I would say to Chip that you can find an excellent gas grill for much less money if you cross the oven feature off your list. Here's the one we decided on:
Amazon.com: Ducane 30741301 Affinity 4400 4-Burner Propane Gas Grill: Patio, Lawn & Garden
It has an included rotisserie attachment, handy smoker-chip compartment, hidden propane storage, side burner, side shelf, ample cooking area, hood thermostat, stainless grates. High grade stainless steel exterior (magnets won't stick). I like that it has four burners instead of three like many in its class. I have more flexibility for indirect/direct heat and temperature variance options.
Also, the older grills are basic black and look dated. Newer ones are industrial-looking stainless steel, which I am convinced wil be forced into perceived obsolescence by marketers soon enough. This one is a nice combination of the two finishes, so, aesthetically, I believe it will last longer, too.
Good luck finding the grill that's right for you!!