Hi! I have had dragons in the past and will, by the end of the month, be getting a baby
They are lovely lizards, the 'puppy dog' of reptiles, IMO, and I would reccomend them immediately, especially to a person that needed a friendly, versatile, hardy, first-time reptile.
Feeding them is pretty strait forward, as long as you can stand crickets. When I first got into Beardies, I was trying to go around feeding live prey, but eventually I had to accept it. If you're okay with dead insects, than you can get a vibrating dish to feed them on (Dragons only respond to movement). Dragons will eat ANYTHING... I always feed them my veggie scraps, but make sure you know which types aren't good (no spinach!). They'll eat fruit and veggies, and sometimes I give them a little spoonful of cat food as a treat... lol... funny things like that
To start them off, when they're little babies, a 20 gal is fine, but you'll have to get a 50 gallon soon for a single, and a 75+ gallon for two dragons. I hold my dragons all the time... this really gets them used to it. I don't let them run around, but I'll take them with me to watch T.V., and feed them treats on the couch for an hour or so...
As for lamps, they need a UV lamp (florescent), and a heat lamp. I put them in aquariums with the lids that have the tube lights (UV) on top, and then put in an extra heat lamp. You can also use Mercury Vapor Bulbs (2 in 1!)
That's all I can think of... I'll try and give you more info and answer any questions!!!
-Z