I'd check out the care sheet posted above, as well as the ones at
www.reptilerooms.com, and
www.beardeddragon.org
Here are the basics:
Tank - an adult needs 6-8 square feet of floor space and at least 18 inches depth, so you're looking at a 75g or larger. Or you can build your own using the plans on these sites:
http://www.timelessspirit.com/enclosure.html
http://www.freewebs.com/crossfireenclosures/
Substrate - for a baby or young dragon go with something solid (paper towels, nonadhesive shelf liner, reptile carpet, textured ceramic or slate tiles). I use tiles myself and love them - very easy to keep clean and help keep my dragon's nails trimmed down. If he's an adult and you really like the sand look, go with washed and sifted children's playsand from the home improvement store. Stay away from calcisand or vitasand for any dragon.
Heat bulb and fixture - a regular dome light fixture with a ceramic base/socket. For heat you can use a regular household lightbulb or a halogen flood light (my preference because it kicks out more heat per watt). The light should be clear - not red - and there should be no lights on in the dragon's tank at night. They don't need a heat source at night unless the temps drop below the low sixties F.
UV lighting - Either a reptisun 10.0 flourescent bulb (the full tube bulb, not the compact) or a mercury vapor bulb (see
www.reptileuv.com). The flourescent needs to be replaced every six months and your dragon needs to be able to get within 6 inches of teh bulb. If you go with the MVB, some of them last a year and your dragon needs to be 12 inches away from the bulb.
Digital thermometer with a probe, or a temperature gun to accurately measure the temps. You want a basking spot of 100-110*F and a cool side of around 80*.
Then of course you'll need the live food - crickets and roaches (both no longer than the space between his eyes), silk worms, pheonix worms, and hornworms are all good. Mealies aren't good for small dragons, and superworms are good only for dragons 16 inches or longer. Growing dragons eat a lot of bugs (can be 60-100 crickets a day), adults considerably less bugs and more greens. Dragons should have a fresh salad offered daily. If you haven' seen them yet, here are some good sites for good greens, veggies, and fruit for dragons:
http://www.beautifuldragons.503xtrem...Nutrition.html
http://www.reptilerooms.com/Sections...98-page-1.html
I think that covers the basics. Hope that helps.