I'm playing this cheap little PC game I got at Best Buy called Missing. It's a CD full of weird videos and puzzles to solve a murder and to find 2 missing people. To solve the puzzles, which are all creepy and cool, they send you real emails from imaginary game characters. It totally feels like I'm in the FBI. Well, close enough. Anyhow, give it a try. Here's the "abductor's" site if you're interested in solving some similar puzzles:
http://www.xineph.com/0016/gb/index.html