www.deerfernfarms.com
Great uros, great site, great info for the common uro keeper. Pro Exotics has done some very interesting things with uromastyx (mainly giving them a 10' circular enclosure with 2' of good dirt so they could exercise their burrowing abilities). I would definately give the little guy/girl a 'nest box' at least (you can see examples on the caresheet on deerfernfarms.com). I have kind of a false burrow set up in my cage, since I only have room for 3-4" of dirt. I just basically dug a large rectangular hole almost to the bottom of the cage. Then I set in a piece of thin plywood (roughly 1'x2') so that there was roughly 1.5" of space, with just under 1" of dirt beneath that. Then I covered that piece of plywood with about .5-1" of dirt. I left entrances on both ends of the fake burrow, and my mali loves to get in there and peak out each end to see what's going on. It looks pretty nice, because it almost looks like a real burrow, and it suits the purpose of offering a higher humidity hiding spot for her.
Your uro's schedule sounds about right. Remember that in the wild a uromastyx will spend almost all of its day deep beneath the surface in a humid burrow (for moisture retention), only coming out at certain points in the day (usually the hottest points, when there is likely to be no predators around) to eat, bask shortly, and then return to the burrow.
I would encourage you to do as much research on the actual animal as you can, but try not to do too much research on common care, because for the most part, there are a lot of aspects of common uromastyx care that are lacking, and can be fixed if you research enough on their wild habits.
BTW, make sure you pick up a temp gun (available from pro exotics at either proexotics.com or tempgun.com). Use that to measure the basking temperatures (along with a digital thermometer) and try to maintain the basking temps at around 130-135ish, sometimes hotter.
Good luck with your new uro!