Hi Theresa,
I live in Phoenix and can offer some advice. The vintage shops here are extremely expensive. But, there are often some good finds at Resale shops. There's not a lot of vintage, but there are occasional great finds. "My Sister's Closet" is on Camelback in Phoenix. There is also a "My Sister's Closet" in Scottsdale that is very good. Scottsdale has a few other great resale shops...I'll have to look up the names.
Florence Crittendon Thrift Store on Central Ave., in Phx, is fantastic. It will close,for the summer, soon, but if you are here before Memorial Day, it should be open. It's only open Tues.-Fri. and the hours tends to be weird. The Auxillary League of Phoenix has a pretty good resale shop on 7th St. They, too, will be closing for the summer. The Clothes Silo, on Osborn, is another good place. Most of these places have very little vintage..and tend to be on the high side...but you can occasionally score BIG. Peoples' Thrift on 7th Ave. is fun place. There are some occasional good finds (especially in shoes). Goodwill, of course, is all over. It's worth noting, however, that the Goodwill at Roosevelt and 16th St. has a center where you buy by the pound. It's not for the faint of heart! I've found the GW at Thomas and 32nd St. to have some good things as well as the GW in Scottsdale. I sometimes find things at Savers on Bethany Home Rd. as well. There are a numbe of other Savers' in town. ARC on Central Ave. sometimes has some good finds and it's close to a GW and a Salvation Army. St. Vincent's has a thrift store on 7th St. near the Auxillary League as well. You might want to check out Buffalo Exchange on Missouri and 7th St. It's VERY hit or miss. There's another Buffalo Exchange in Tempe that seems to have better vintage. One other spot that can be good is Kivel's at 7th Ave. and Indian School Road.
I'll let you know if I can think of some other good places. Now, that it is getting hot, the crowds tend to disappear and there's less competition in the thrift shops.

joey