I'm a newbie at the luxeon star LED, though quite experienced with 5mm LEDs. First question, why is it that Lumileds offers the LXHL-LW6C for about 19.25, but most other sites charge about 30-37 dollars for the LED (am I mistaken?)? Is this the best Luxeon V LED or are there alternatives? How much typical luminous flux can be expected from this LED (with 10 degree collimation)? Should I use an LED driver such as the BuckPuck (1000 mA)or is one not necessary to achieve full brightness (I don't plan on requiring the ability to dim the LED)? Can I up the current if heat can be reduced with an efficient heatsink or even thermoelectric cooling? I don't really want to make a hand held flashlight, just an insanely bright LED circuit (so I can use bench power supplies, bulky converters, and large cooling). Any other info would help. Like I said, size and power supply aren't really limits, I would just like to have max brightness using one LuxV (or even LuxI or LuxIII??) for hopefully under 50 bucks (collimator, LED, driver if necessary). Sorry about all the questions, but I appreciate the help, info, and other helpful information. Thanks--