BMW Frients,

I am about to order a 535i. I'd actually ordered an x5d on 1/3 but am having huge buyer's remorse and wasn't required to put money down or even sign a sales order so I am not "too" worried (using that term lightly). I can't be the first guy to change his mind...

Here's what I'm going to order:
535i
Prem. package I and II
Convienance Pkg.
Dark Graphite Metallic w/Black leather interior

Any toher options/packages that are a must have? Would love the sport package but don't think I can spring it. This car is going to cost me a little more than the x5 because of the lack of eco credit and some other items but I think I will be a lot more satisfied. Does anyone have the Smartphone Integration? Is it worth getting?

Final questions -- where is a good source to determine dealer invoice -- and does anyone know about the lease program? I applied on 1/3/11 - the last day for the holiday credit. Do you know if I change my order if I can still get the holiday credit or deos everything reset (not the end of the world as they just inflate the ARP/money factor to cover the holiday cash.

In advance, many thanks