Sure, you can make time lapse videos using just about any camera — but if it doesn't have a built-in intervalometer, you might end up clicking the camera button yourself, and in any case you're going to spend some time converting those stills into a video. Or you could just use the Brinno HDR TIme Lapse Camera ($400). Made specifically for the task, the Brinno features a 1.3 megapixel HDR image sensor that it uses to produce 720p time lapse video, with the ability to set the interval between frames from 0.3 seconds to 24 hours. It also features a CS lens mount, so you can swap out the included 14 mm f/2.0 lens for a wide range of glass. Once it's done shooting, all you need to do is pop out the SD card, pop it into your computer, and enjoy the video that's already been assembled.