I was running PC's over my 55g. When i set up this one i knew i was going LED, and a friend was selling his old units. They are not the best but they do what i need for now.
I have two 20k evolution 150's (1 watt led's). They are a little too blue for me but they are keeping everything alive. i would like to build my own some time soon.... thinking RapidLED. The radions that i want are still way out of my price range.