What you need good sir, is a 993 rs steering wheel(leather) ,around 160-200 plus vat last time i looked ,complete with mounting boss/ hubspacer and horn pad/push from your local friendly opc.A small adapter for the steering column stalk(£10-£15) is required to convert from an airbag set up to the rs non airbag unit, and one wire requires repositioning within the block connector on the column stalk to facilitate the horn operation (the horn loom is normally contained within the airbag "spiral cable " housing which would on an airbag set up mount between the steering wheel and the column stalk assembly.
Oh and a 2.5 ohm resistor to plumb in to the airbag loom to fool the control unit into thinking that the airbag is still there and keep the warning light out and the passenger airbag active.
It sounds a bit of work but when you have done a few it's less than a hours work!
if thats too road car for you then the dished momo mod07 /porsche motorsport wheel (suede) is the most rewarding wheel i have ever used in a 993 ,but it's a bit full on racer in appearance!
Might i suggest that a good seat to compliment the wheel will make you think that you have changed your car, in terms of driver communication with the chassis and overall involvement. something along the lines of a recaro pole position or an spg .
regards Cj