Jay, not sure if you're aware but if it's big power you're after then you don't want a PDK tubby, as the gearbox will not take anything over 600bhp before cutting out and leaving you in limp mode. No-one has figured out a way around this yet, which is why all the big power 997.2 cars are manuals.
It's not exactly a slouch with 'just' 525bhp, but just so you know. I know you're about the show as much as the go, but worth bearing in mind. Keep an eye on the cost of PCCB replacements too, as they're absolutely daft money...
Also, I'm fricking jealous. I would love a Turbo S, utterly stunning cars that will annihilate just about anything they come across. When I did Vmax at Brunters a guy had one there and it didn't exactly do bad against the 599 GTO in the head to head. Immense.