Let's Make Robots!

Help...Need to build wireless robot

hi all. I'm a beginner.

i need to build a robot driving to wheels.

controlled wirelessly through a laptop 

and need to have atleast 4 channels 

transmit video from 2 cameras to the laptop(range 100m) 


presently i'm using arduino to control the robot.

please suggest me what i can use to make those above possible.

i lesser range will do.