Another option is the Vertex Illuminux bars which I believe are dimmable...
http://www.aquariumspecialty.com/lighting/vertex/vertex-illumilux-ii-24-marino-blu-modular-led-strip
I'm pretty much on the AI or Vertex realm at this point and strongly leaning towards the Vertex Illumina but it's gonna cost me
http://www.youtube.com/watch?v=vQTUExnQxLY
Not sure of the availability of the AI flares at this point.