You'll need a 434 Mhz (transmits to channel 59 UHF) or 2.4 GHz TX/RX. FIRST does not allow 900 MHz TX/RX b/c it will interfere with the RC system.
I tried our 900 MHz system and it causes the RC to loose signal.
Here are some pics of the camera, and our 900 MHz TX/RX, if I get the chance and the extra $$$ I am thinking of getting a 2.4 GHz setup.
TRV - Tele-Robotics Vehicle Experiment (not as cool as FIRST, but was almost just as fun)
http://wihs.no-ip.com:8080/~mrb/trv/
Ceck out the link to SUPERCIRCUITS on the site if you are interested in finding some cool Wireless video equipment.