Just to add some fuel to the fire I have a 3x3 tent and have a clw solar storm 440w I love the thing. I also have a clw 110 the out performs my Area 51 w100 but I have never run them side by side, my plants seem to like the clw (or at least I think they do).
I know it's expensive but it works and has a warenty and the uvb is a nice touch. Sure that guy can probably build a better one but I bet he hasn't tried a solar storm. But the only other panels I tried were a51. They worked fine, but i tend to prefer the clw. Again yeah it's expensive, but I'm just saying it grows great stuff for me.