I use EVC3 - East Valley Class 3. They are out the back of AJI Sporting Goods in west Apache Junction, just on the border with Mesa.
They are a tiny little shop that give the best prices I've ever seen, $20 transfers, barrel threading, engraving, gunsmithing, etc. They'll even let you hop on their PC to pump out a Quicken gun trust for free if it's part of a sale. I was horribly disappointed by all the gun stores out here until I went to EVC3. Now I'm disappointed by every other gun store I've ever been to. Good people.
P.S. I'm not a shill and I do not work there. Figured I'd say that after that review. Their inventory isn't impressive, but their prices are damn good. I don't know what dealer price is, but beating MSRP on a $500 item by $180 got my attention. Sold!