I read about a risk for interference from the 900MHz video transmitter on the 2.4GHz RC system so I have ordered a
low pass filter from RangeVideo. Also, I ordered a few
small voltage regulators from Dimensions Engeneering to help power the video transmitter either from the robot's batteries or from a little 7.4V Lipo battery. It could be wise to isolate the video transmitter from the RC system as much as possible.