Laser Rangefinders

[DavidGitz]

Does anyone have a source for a laser rangefinder? I'm looking to either make one or buy one, for under $100 each. I've only been able to find two types online, home-made ones that use a webcam as a receiver or using a photodiode ic, but the only ic's i can find only tell if it detects a laser beam or not, they don't give an actual distance.
What I am looking to do is measure distances up to around 100 feet with a laser that operates similar to a UltraSonic, you send a trigger pulse out from your controller and then you count the number of cycles before you get a response, which will give the distance (of course, you have to divide by 2). I don't really care if the one I get works that way or not though, just as long as I can somehow get a distance reading.