Luxeons are available through Future Electronic via http://www.lumileds.com

These guys offer (expensive) optics for the Luxeon (including some interesting ones for RGB). http://www.fraen.com/optics.htm

Optics available through Future Electronics (Suppliers).

Luxeon flashlight reference design: http://www.lumileds.com/pdfs/DR02.PDF

Boost regulator datasheet from that reference design: http://www.sipex.com/products/pdf/sp6641.pdf

Drivers specifically for Luxeon:

Luxeon related parts:

Luxeons in action: LuxeonLights