Kiltmart.com is on Central Ave in the back of a pawn shop. They have a website and sell inexpensive (read Pakistan) products. I've purchased some things there as I can go in and see them first hand. They are primarily web based.

By far the most knowelgeable person with the best quality, IMO, is Graeme Niven at Arizona Kilts (www.arizonakilts.com). Graeme is a Scot. Their primary business is rentals, but also sales. I've just gotten acquainted with him and he knows his stuff. He's in Scottsdale. When you go into his shop you'll find that he actually walks the talk (he'll be kilted).