Thankyou very much for your answer.
Agree with Anderson.
The data rates of these products are very prohibitive.
Don't confuse operating frequency with data rate.
2.4 Ghz Xbee products as well as 800 Mhz products have data rates below 250kbps.
*At Work* we have fancy HDL code to do compression at either end to pump though the xBee. I know its done on the Honeywell dual copter here.... I'm just saying I've seen it done in industry before. Also, our usual video sensors are omnivision camera cube products, $12 SMD video devices that already can give you JPEG's and PPM's right off the bat. at 40 or so fps.