You can also check craigslist.org for tanks, you can usually find some good deals on there. Just to put it all in one place for you, here is a list of all the items you will need for a happy and healthy beardie:
Option 1:
40 gallon breeder tank
Basking bulb (this can be just an ordinary house holdbulb)
Clamp lamp (for basking bulb)
36" Reptisun 10 tube or Repti-glo 8.0 (if you can find it) (need to be replaced every 6 months)
Florescent light fixture (you can get these at home depot or lowes, they are shop lights)
Substrate for the bottom - non-adhesive shelf liner, paper towels, news paper, tile, washed & sifted childrens play sand (sand for sub-adults/adults only)
Thermometer - either a digital one with a probe or a temp gun
Basking platform
Food dishes
Calcium with D3 Phosperus free
Multi-vitiman
Large Cricket Keeper
Option 2:
40 gallon breeder tank
Mercury Vapor Bulb (t-rex active heat uv, power sun or reptileUV) (these are more expenseive to start with but are much better and last 2x as long)
Deep Clamp lamp (for MVB)
Clamp lamp (incase you need extra light at the other end of the viv)
Substrate for the bottom - non-adhesive shelf liner, paper towels, news paper, tile, washed & sifted childrens play sand (sand for sub-adults/adults only)
Thermometer - either a digital one with a probe or a temp gun
Basking platform
Food dishes
Calcium no D3 Phosperus free
Multi-vitiman
Large Cricket Keeper
Things to stay away from:
colored bulbs
coil/compact bulbs
any bulbs by ESU or Zilla
Calci-Sand
Repti-Sand