Unless you need a Golf for the practicality, for the money you're talking about, having recently started enjoying a Corrado I would suggest you go try one.
Don't go for the G60 or the VR6, jump into the 16V for the simplicity and lower cost.
£5k should net you a minter and as far as I can make out you'll feel like approximately a million bucks driving down the road..... then you'll find a twisty road and have some fun.
Put some proper management on the motor and it should be a touch more economic, too.
Just remember it's just a Golf2 underneath, but a touch stiffer.