Welcome, this is the right place to get info.
I posted a reply once but it seems to have gotten lost, if it comes back up please forgive me for posting twice!
Dragons are wonderful creatures that are easy to care for but require a good deal of investment to get them set up correctly.
At a minimum you will need:
1 Dragon
1 40 gallon breeder aquarium or 4'x2'x2' vivarium
1
uvb light source (only reptisun 10.0 or quality mvb is recommened)
1 spot light to heat basking spot (unless using mvb which produces both heat and uvb)
1 Probe thermometer to measure heat in your viv
50 to 100 feeders a day (if getting a baby dragon. They will eat this amount for several months)
My cost at start up:
1 dragon = $50
all the junk petco sold us that we didn't need = $120
1 4'x2'x2' home made vivarium = $250
1 mvb light = $50 (includes shipping)
1 probe therm = $10
50 to 100 live lobster roach feeder a day = $35/ month bought in bulk
Total at startup: $515
Monthly maintenance: $35
Hope that helps,
Eric