I bought a Weber 3 burner natural gas grill from Amazon a year ago. I just cooked for 10 adults on it no problem. The assembly was easy and it is built to last. Easy to clean also with a grate that you just pull out and dump. CR rated as their best one.
http://www.amazon.com/Weber-3851001-Genesis-E-320-Natural/dp/B000OBLAR2/ref=sr_1_5?ie=UTF8&s=garden&qid=1250519489&sr=1-5
The heating is very even and the thermometer accurate. I can cook whole roasts and chicken on it also with a remote heating probe.