Some options:
ArmyTek Predator G109.1
Current model uses XP-G R5 emitter. Beam profile is focused for throw with some side spill. Tint is almost a pure white, no angry blue or pink to it. Runs off of 2xCR123A, 2xR123 Li-Ion, 1x18650 Li-Ion, or 1x18650 LiFePO4 batteries. Light is fully programmable (
http://www.armytek.com/content/predator_manual.pdf), and looks like it can take a beating. I love mine and opted for the matt stainless steel opposed to the gold.
[video=youtube;lvA79TAMu6c]http://www.youtube.com/watch?v=lvA79TAMu6c[/video]
There is an XM-L version that's going to be released later this summer.
Spark SL6-800CW
This one is scheduled to be released next week and will use the XM-L emitter. I believe this comes with a frosted lens, so this one will not be a thrower but should throw up a wall of light. Features a rear (tail) and side switch. Will run off of 1X18650 or 2XCR123A batteries. 500 lumens (max), with 800 lumens (super) available in 5 minute bursts, it isn't specified whether these are taken at the emitter, OTF, or ANSI.
EagleTac T20C2 Mark II
I love this one too. Runs off of 1x18650 or 2xCR123A batteries. This is upgradeable, much like a P60 host, only with EagleTac modules. I currently have a Q4 5A neutral white, XR-E R2 for throw (cool white), and XM-L T6. They just released a XM-L T6 high output, and of course you can also pick up an XP-G R5/S2 or ir/color modules. Is weapon mountable.
Honorable mentions (and I'll echo Esav's recommendations): Fenix TK41 (if size isn't a factor. runs off of 8AA batteries-NiMH recommend), Fenix TK21, or one of the 4Sevens Maelstrom variations.