Some interesting points, some I'd have to agree with.
Spiker, when it comes to options it's a personnel thing really, in my opinion. From a salesman's point of view most customers ask for the following options.
PCM (Sat Nav)
Telephone Module
19" Wheels
I would agree a full OPC history is essential, buying from an OPC does have it's advantages. Cheapest isn't always the best!!! With Porsche giving a 24 month warranty specialists will be shaking in their boots!!!
I would agree that on 19's they do tram a little, find a nice stretch of tarmac though and you'd be pleased you went for the bigger wheel option.
I'm not sure what biscuit means about point 4 "the 2.7 engine, it's really bad" ? If you drive a 2.7 back to back with the 3.2, yes you'd want to buy the 3.2, drive a 997 C2 3.6 and then drive a 997 Turbo you'd want the turbo.....My point is that both cars are fantastic!!!
Again, when it comes to colours, go for what you want, I think Boxster Red and Sand Beige look stunning....depending on the exterior colour.
Tips on negotiating, find a salesman that is interested in what you are looking for and not what he wants to sell you. These cars are unique and finding the right one might take sometime.
Phone to make an appointment and make sure you give yourself plenty of time to cover all area's. Drive a 2.7, but make sure you don't just do a 5 minute demo. Don't drive something that is over budget or it will cost you!!
Craig