that is what I suggested a while back
they actually are very very cheap... you can get the ballast for about $15, and the bulbs for around $8/pr for daylight bulbs (if that is what you want to run). Then you buy the tomb-stones and the wiring, and it should all cost you less than $40.
you can also buy the whole fixture thing, and it should not be much more than that, but mainly you will be paying for somebody to put all of it together for you!
hope that helps.
MO