premium vs. tech pkg... tough call as I like:
premium:
- bluetooth
- homelink
- ambient lighting
- auto tailgate (paid $500 in 08 models instead of being included in pkg).
tech:
- nav w/ RTTI
- pdc (though without camera I'm not sure how much use you'll get out of it for inching during parallel parking).
Can you somehow work out premium pkg + nav (comes with RTTI & voice)? That's what I would do in your situation. Premium gives you leather seats over leatherette too... not nappa. Simply adding nav gets you the wider idrive screen.
BTW, I just noticed something...
Tech pkg price: $2600
separately, NAV: $1900 + PDC: $700. So the ever-awesome camera is free.