You'll probably get differing opinions on minimum cage size, and it will depend a little bit on the species you're looking to get. Mine is that you'll want at least an 80 gallon or so for an adult Mali (medium size species) and a 55 gallon for an adult Ornate (smaller species). If you're looking at an Egyptian, you'll need to custom build something, probably. As always, bigger is better.
Basking temps for an adult is usually recommended anywhere 115-125 F. I run mine toward the higher end of that. Hatchlings need it a little bit cooler.
For some great care info and gorgeous photos of the various species, go to Deer Fern Farms.
Let us know what you decide! Uros are excellent lizards.
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Torey
Eugene, Oregon, USA
1.1 Uromastyx Geyri (Joe and Arthur)
2.0.1 Uromastyx Dispar Maliensis (Tank, Turtle, and new neighbor Spike)
1.2 Anolis Carolinensis (Bowser, Leeloo, and Sprocket)
1.1 African Dwarf Frogs (Bruce and Sheila)
1.0 Betta Splendens (Mr. Miagi)
1.1 Felis Domesticus (Roscolux and Jenny)
And several miscellaneous community fish
