might also be worth checking Golfclubs4cash, they had tones of Drivers last time i was in the store.Ping's seem to be popular - I'll have a good root around Golfbidder, ebay, etc and see what I can find.
When I said I had the Nike SQ, it isn't wasn't the square monstrosity that sounded like a rock in a coke can, it's the rounded version. It's not a bad driver, but I think something that is more up to date would be the way to go.
Thanks for all the suggestions, I'll see what i can find