Thanks, We went to the zoo with the kids and then to the super huge burrito place that I never get to go to. The kids also got me a huge jar of kimchi from the Korean so I am very happy today.
Well, there's a lot of things you can do with it. I suppose the best thing is to decide if You want that big of a light and then go from there. Like you said, you got some suggestions from JM, so you just need to decide if you want that monster, or sell or tradt it off to someone, for something else. It's personal preference.
Really I just want the easiest mod to start with. I think probably 3D like dthrckt suggested would be easiest. All I would need for that is an emitter and heat sink if I did it direct drive. I could run nimh or alkalines in that right?
About Alkaline use: I don't think that's a good idea. See oldbobk's response in this thread on his experience. Could probably do it with a boost driver (one that runs say 0.9 to 4.2v or so. Match had a recommended driver for his 1D build which worked for 1D or 3AA and put out 1.7A max I think.
Triple SST-90 with a FET to bypass the switch. It'll need a large chunk of C110 copper to draw out the heat, but, if done right will put out in excess of 5000 lumens. You know you want it!