I sell mostly Weber grills and prodcts, although I do some cheaper gas grills also, char broil, off brands, ect.....
I strongly suggest the extra money for a weber, it'll be the last grill you buy for 20+ years, anything goes wrong, no questions asked replacement warranty on parts.
But buy one soon, a 2004 model comes with a gas tank, and the 2005 models are not going to include tanks, and the overall price will be increasing. If you go somewhere with 2004 models sitting on the floor, Weber has authorized retailers to give big discounts to clear them out. Look for a Weber silver B grill, with porcelin grates/flavorizer bars. It is a step down from one with stainless steel guts, but after a few years you can pick up stainless grates/bars for 100 bucks. A grill like this may go for 450ish right now. If you can find one.