Oh, and for flashlight related topics, this is probably the biggest flashlight forum on the internet:
CandlePowerForums
They have various recommendations and DIY projects and things. I have been low-level considering just putting together a custom flashlight for a while, and that's where I go to think about that. I'm pretty sure you can get much better quality for cheaper if you put it together yourself, and my main hesitation about getting a pricier flashlight is that I lose flashlights. Also, I really like putting things into stupid cases, so they look like some old piece of shit.
And Deal Extreme has a pretty comprehensive flashlight selection, including
flashlight parts for repairs and custom projects.