The Flashlight DVR Compact by Swann puts everything right in your hands. It's got a digital video recorder that works as a camcorder and takes still images to boot, a built-in mic for audio and the ability to capture in night vision for when you've got a black-ops assignment. It records onto an SD card, capable of stuffing eight hours of footage on 1GB, and there's a panic siren that'll have the guard dogs running. Oh, and it's also a flashlight.
What's more, the whole thing is encased in an aluminum alloy casing that will be able to take just as much punishment as you can, and maybe even dish it out.
Being a spy isn't cheap though - $399 to get you started.