Kyle,
For our tanks, we use several different types of lighting combinations.
On my rack, my 50 gallon and my 90 gallon we use 48 inch shoplights (the 50 has 2, total of 4 40 watt bulbs, the 90 has 3, total of 6 40 watt bulbs). I only use one fixture for the ten gallons (one fixture fits over 2 tanks on the rack). Bromeliads that were not red when I got them have turned red, same with Nepenthes and philodendrons. Bromeliads also pup very well. With the shop lights, I use half GE plant/aquariums bulbs and half daylight bulbs (a mix of GE brand and Phillips...I believe the Phillips brand can be bought cheaper as a non specialty bulb at HD, but is the same output as the more expensive GE Sunshine).
On our stand alone 30 gallon, I bought the Lights of America compact fluorescent security lights (make sure they say Fluorex on them, otherwise they are a nasty yellow and not daylight...sort of like a standard incandescent). I use 2 of these on this tank (I believe 65 watts?) with the standard fluorescent strip that came with the tank, in which I put an overpriced Fritz aquarium plant bulb. Visually, I see no difference between PC lighting and these LOA fixtures at all. The fixtures are around $25, and then another $7 for the electrical cord.
On our smaller "holding" tanks, which we still like to look nice, I am using the screw-in daylight compact fluorescents, Comercial Electric, $7.99 Home Depot, in clamp lamps attached to the rack. Chad Mayer went to a dollar store found them selling daylight CF bulbs of a generic brand. There is no difference between these and the Home Depot brand, except they probably won't last as long. These bulbs put out GREAT light and great plant growth. On any tanks that I can't use shoplights, this is the way I am going to go. I would still like to add a "red" bulb to offset the color a bit for a display tank.
I have seen many tanks using power compacts, and I can honestly say that the plant growth we get is the same, for a much cheaper price. Sometimes you just have to get a little creative...
-----
David Knight
Tempe, AZ
3.0.1 D. imitator
3.2 D. leucomelas
1.2.1 P. terribilis (mint)
0.0.2 D. azureus
0.0.1 D. tinctorius (Alanis)
0.1 D. tinctorius (Brazilian cobalt)
0.0.4 D. auratus (Panamanian green and bronze)
1.1 M. madagascariensis
1.0 P. hypochondrialis
www.frognet.org/gallery/davidknight