Amazon has the Spy Gear TRAKR for just $57.48 shipped, originally priced at $129.99. This remote-controlled robot “transmits video to the full-color screen on the remote control for viewing in real time.” Product page. Video preview after the break.
For more advanced spying, TRAKR can run specialized apps for even better functionality, and it can store video on a memory card (sold separately) for uploading to your computer. Recommended for spies ages eight and older, TRAKR offers hours of high-tech sleuthing fun.