Hi James,

Sounds like a sensible plan with a sensible amount of money behind it. If you can go to your nearest scrap merchant and pick up some metal your bedget will stretch a lot further because it is still quite tight at £200.

For the drive system you will need a speed controller, batteries and two motors plus the RC kit.

I like the Robot Power kit, the Magnum gear motor is a nice powerful motor and the Scorpion XL is a nice little dual speed controller too. You would proably need to strech your budget a bit thought for that. BUT, it would be money well spent. www.robotpower.com

Drill motors is another option, very cheap but can tend to fail quite a lot so you end up replacing them all the time.

Andy