Ok, so I read Hoppy's lighting chart, and it looks like I probably want to go with T5's instead of T8's. Doing that, I would also only need to have a 2 lamp fixture, sitting about 4 inches from surface, although I'm not sure I see a mention of wattage with that chart. Basically, I'm just looking for a high light set-up, hanging pretty near the surface of the water, with which I can grow any plant I want. Also looking to keep costs down and make the hood so I'm not looking for any pre-built stuff, just the fixtures. Sorry for the novel this question is turning into...