I'm glad she's eating well for you - I hope that continues. For lighting, we won't be able to give you the specifics of wattage, because that's entirely dependent on a huge variety of factors that only you can know. It's literally trial and error and careful measuring of temps to get your wattages correct. But in general, you will need two very important things: proper heat, and good UVB. Heat is usually (and best) provided by overhead lighting - regular incandescents, halogen floods, and "reptile" basking bulbs are very common and easy to use. Be sure to use ceramic sockets, as these lights can get plenty hot - too hot for plastic sockets.
UVB is a huge and controversial subject, which you will likely want to research thoroughly on your own. The short version is, your uro MUST have some way to get vitmain D3 in order to process its calcium. The simplest way to do this is with unfiltered sun exposure in an open wire caging of some kind. Next would be a good UVB lighting. The best fluorescents on the market for reliable UVB is the Reptisun 5.0 by ZooMed. There are lots of other products, some great, some crap. You'll have to do the research if you want more info (highly recommend the UVB Meter Owners group on Yahoo for that). If you use fluorescents, the reptile must be within 6"-12" to get any worthwhile UVB. There are also mercury vapor bulbs and D3 dietary supplements, but you can read up on them and make your own decisions.
Lastly, the 10 gallon is way, way too small to keep her in even as a temporary tank while you wait for the new one. You cannot get a good temperature gradient in there. She will either overheat or be too cool, and from the picture, she cannot risk any sub-optimal conditions right now. You can get a big rubbermaid bin (at least 40-50 gallons) for pretty cheap at some place like Target.
I hope she does well for you - you might consider a vet visit as well, as many imported critters are riddled with parasites. I apologize if any of this is old news to you. Better to give info you already know than to leave out something you don't! Saharans are beautiful lizards, but sometimes difficult to acclimate - congrats on yours, and I wish you the best!
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Torey
Eugene, Oregon, USA
1.1 Uromastyx geyri (Joe and Arthur)
3.0 Uromastyx dispar maliensis (Tank, Turtle, and Spike)
1.1 Uromastyx ornata (Scuttlebutt and Shazzbot)
2.1 Anolis carolinensis (Bowser, Sprocket, and Leeloo)
1.0 Betta splendens (Mr. Miagi)
1.1 Felis domesticus (Roscolux and Jenny)
