You got a nice motor. Hope you enjoy it
You got the same sort of spec as me on my audi s4 59plate, I loved the sound system it's better then what I have in my e90.
I have the mmi 3G nav in mines it was rubbish I think.
I sold my audi s4 2 weeks ago, won't miss it much, other then the looks and few other bits and bobs.
If you decide to join a audi forum, join audisport.net the guys on there are awesome just like the guys on here