The standard cooling setup should be fine, just make sure it's all in good working order.
A reverse flush to get any sediment out of the radiator and refill with some new coolant and see how you get on.
You can wire in an 'emergency switch' if you want but i haven't found it necessary, also you don't want it to run too cool. Just make sure it doesn't go over the 3rd bar (90c if i remember correctly).
Mine sits bang in the middle, rising in traffic and comes straight back down again when the fan comes on.