Interesting idea Tom! You could do some cool stuff with a tank dominated with acans and the multi-color ricordia as well. The nice thing is that you'll still be able to spend a ton of money on frags as well! Just be careful not to burn anything with those LEDs, as LPS and softies will require much less light.
Detroit's oldest large LED tank! Est'd Jan 2005, went LED June 2009. 6' wide 130g reef, Sunbrite T10 LED tubes (3xGen 3 and 1xGen 1), mostly SPS, but chalices, other LPS, and a few softies too. http://pjr-reef.blogspot.com/