I had my geo setup by this guy -
http://www.steeralign.co.uk/ It totally transformed the handling of the car.
He is called Matt Oliver and has done a number of cars that compete in the Sevenoaks Speed League, all with extremely positive feedback. Matt was the 2007 British Sprint Champion in a Judd powered single seater and really knows what he is up to with regards setting up to order, or recommending settings where necessary. Definitely worth a call.