I always love a good 'challenge'; not only in caring for an exotic pet like my uro, but also from people's comment exchange in forums like this one. Here are a few of the caresheets I have read online regarding uro diets, heat/lighting, substrate choice, etc...and mid you, some of these caresheets are from 'highly praised' and 'expert' breeders, hobbyists, etc.

http://www.deerfernfarms.com/Uromastyx_Care.htm

http://reptileguides.herpcenter.com/showthread.php?t=43

http://www.reptilekeeper.co.uk/uros caresheet/dixcaresheet.php