Freshy - check out http://www.buildmyled.com
Those look sweet!
Problem is, I see a 12" and a 24". You'd either have to go too small or too large for a 20" wide 10gal tank. At this point I'm glad I've only got ~$40 invested in a light strip and two 6500K CFLs to see how it goes for me. If it works out and I enjoy it, there's all kinds options available.