You're definitely better off not going with a pet store. A breeder is a better bet for a nice, healthy critter. If I were shopping for a new lizard, my first choice would be Lindsay Pike of Urotopia, but there are others as well. The website was way out of date last time I looked (ages ago), but you can just contact him to see if he has what you're looking for.
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Torey
Eugene, Oregon, USA
0.2 Saharan Uros (Arthur and Hitch)
3.0 Mali Uros (Spike, Turtle, and Tank)
1.0 Ornate Uro (Scuttlebutt)
1.2 Collared Lizards (Ripcord, Thiamine, and Riboflavin)
0.1 Housecat (Jenny)