Hello. If i wanted to wire a couple of small high speed fans into my car, how would i go about doing this?

I wanted to put a switch in the car, but im not sure what other bits i need, apart from wire.

Can i just run a postive from the battery, into the switch, then from the switch (with an inline fuse) to the fans? then run the negative to the body of the car?

as you can tell, im total bollox with electrics, so some info would be good.
Cheers
Mike