I'm a video professional and I've built some of my own lighting units in the past for specific apps, like sodium/merc vapor fixtures, etc. I'm experimenting with LED lighting for use in situations where I have limited access to power--but still need a big punch of light. I'm looking to build an array of LEDs to fill up a softbox or bounce into a larger sheet of fabric. Im having a hard time finding a vendor that sells Neutral white (5000k to 6000k) Cree (xre or mc-e, or SSC p7)-- or other high power LEDs. DealExtreme has a good selection but the tend to be in the 6000k to 7000k+ range. Once I find a good source I plan on building a prototype with up to 6 using a BuckPuck by Luxdrive and a 36v power supply. If anyone knows a good vendor for neutral white LEDs, please let me know, or if you have any suggestions or potential pitfalls that I may encouter. Thanks!