Thanks to everyone for taking the time to answer my questions.
I was going to order this week from 'Drive the Deal' but one of the dealers I've used in the past came very close to the price and their service has always been superb.
A3 Sportback 2.0 TDi S-Line in Daytona Grey
Bang & Olufsen
SD Card Sat Nav
Interior Light Pack
Estimated delivery date is May 2013.
It's the longest I've every waited for a car so I hope it's worth the wait. Roll on Audi number 8.