Two companies that gave me excellent service are:
I bought his mammoth 3/8 inch stainless steel 18.5 inch grill for my Big Green Egg. Fast service, fast shipping. The website needs work, be he can do just about anything and he's a nice guy to boot.
The other company is:
I bought his stainless steel vent cap, also for the BGE. Once again excellent service, excellent product.
I should also mention that both of thesee companies came to my attention from reading the Naked Whiz website.
There's tons of good reviews and a charcoal database that's just fantastic.