You won't get a deal on them, but take a look at Ace Hardware. They carry the EP line of grills which have full stainless burners, covers, and grates. Nice little upgrade over the standard 310/330 for about $50 more.
I've got the 330 with the sear station. It helps get the grill *HOT*. I'm running natural gas and with 3 burners on it will get the grill up to about 450. Throw the sear burner on and it's able to hit over 600 degrees. I don't use it that often though. It's nice for getting things preheated fast, and I'll use it a bit to do more indirect cooking at higher temps. It's also good for getting high temps if you are doing pizza's on pizza stone on the grill. 500-550 degrees and a couple minutes on stone and you've got an awesome pizza.