I finally made that leap, trading my '06 MC for an '07 MCS yesterday! It had just arrived at Moritz Mini (a great dealership!), and had all the swell stuff I wanted:

Chili Red w/Red Roof
Carbon Black Leather
Audio Package (the Sirius radio is awesome!)
Convenience Package
Cold Weather Package
Premium Package
Sport Package
Anthracite headliner
Chrome Line Interior
Brushed Alloy Dash
Rear Fog Lamp
White turn-signal lights

Sure did cost more than my MC...I think I'll be keeping this one for a while! The number of buttons/gizmos is dizzying, and there's a few things I still have to figure out. Example: I parked in the garage, and came out something like 15 minutes later and the radio was still playing! I locked the doors and it shut off. Would it have turned off eventually? Is this something that is adjustable?