is much more efficient, and the bulbs are entirely different (require different pin slots, but only plug in on one side). Look them up online (I gotta run). I think you'll find CFs to be wonderful if you're looking to start a planted tank, or if you're looking to conserve space. Otherwise, there's no reason to get them. With their added wattage (by length, they pack about 2.5X the wattage) they'll increase algae levels in the tank. Of course there are exceptions on different sized tanks...
I'd advise you to get a simple 36" strip light. It'll cost you about $30 at www.bigals.com
(just guessing) and will be infinitely cheaper than buying at the LFS
. Bigals is really a great store. I know you're reluctant about packages getting stolen, but figure out a way to get around it and you'll be saving yourself $20 on the hood, and more on anything else you're tempted to buy (believe me, this is easy when you see the prices).