I have pretty high standards for lights, even since finding CPF. It's not that I'm not one for extraneous frippery (I am more often than I care to admit), but a light is in the grey area between "gadget" and "tool" for me.
I bought a GatLight as an EDC - it's a fantastic light, but it's not usable enough to truly be every-day-carry for me. On the other hand, it's a gorgeous piece of functional industrial artwork. It doesn't look out of place at all hanging out by the Mac Pro.
Next on the list was a Milkyspit-modded SureFire L1. This is a pretty neat-lookin' light to me, and it produces a startling amount of light for something so small. This has become my EDC light, being as much a tool as the GatLight is art. It's built like a tank, runs for a very long time off of the slightly exotic 123s (Thank you, BatteryStation!) and I have totally fallen in love with the way the L1 handles multiple brightness levels. From walking with my "Better half" at night to poking around mountaintop comm towers, it's been just perfect. And to top it all off, it's hard anodized aluminum, so even I'll have a damn hard time beating it up.
As a backup to the ML1, I've been eyeballing McGizmo's mCree XR19C light, once it becomes available. It seems like it might sit in a happy medium between "cool-looking" and "extremely useful tool." I admit to a certain level of vanity, and I like my tools to look good - this probably explains the collection of Apple computers hanging around my house. On the other hand, my MacBook Pro does the job of three computers and looks fantastic doing it. That level of versatility and looks is something I generally hold my tool/gadgets to - and thanks to the wonder of CPF, my flashlights can finally join up.