Hi James:
Try and go for the 5 door GTi. Does not look quite as good as the 3 door, but it is much more practical and somehow looks more grown up. If buying a 3 door Golf, I would go for the Scirocco instead! Better value and svelte looks.
I had to decide between ACC and the sunroof to keep costs down (I am quite mean, really!). Would have liked both, but as I live in London with truly horrible roads, I decided on ACC. I would probably use it in 'comfort' mode most of the time. For you, a sunroof would be a great option.
Carbon Grey is a great colour, but a Reflex Silver GTi really looks the business. I saw one yesterday and it really looked quite fabulous. I went for flat paint as I could not bring myself to pay extra for metallic paint (I am really, really mean!!). Anyway, and thankfully, I love the Tornado Red colour.
I did not specify DSG as I am terribly mean and do prefer manual gearboxes anyway.
I also refuse to pay VW prices for the RNS 510 Sat Nav, as I can get it for £600 fitted from OEM Retrofits.
Please don't option the boot sill protector, either in clear or silver. It looks horrid. But that's my opinion.
Do try and order the steel door sills as they do 'finish' the car off quite nicely. Look at my choice for 'Dealer Supplied Accesories' under the Accessory Brochure thread.
Best of luck in processing your order.
By the way, what colour is the XC90?