The Pelican lights are new, but they seem to be growing in popularity. The Surefire G2 with the addition of a shock isolated bezel is also a route you could take. Both have the ability to take a pressure tape switch. The Surefire classic lights are only about $180 and can come standard with a tape switch. All three will require a separate mounting ring like a FOBUS or Knight's mount. Personally, I would go for the Surefire Classic, but since this is not a duty gun, I think you could chance it with the G2 or the pelican. Both seem to be growing in popularity for a inexpensive, general use weapon light.
Try here: [url=http://www.ar15.com/forums/topic.html?b=7&f=25&t=165056]Bright Flashlights[/url]. If there is something you need, he seems to be very helpful and seems to be able to track just about anything down for you.