Thanks for the help BMWFiend. Did the moonlight mechanic thing last night and got at the MAF, Throttle body and idle control valve. The MAF and throttle body looked what could only be described as immaculate. Its possible that these had been replaced prior to my purchase of vehicle at 65k miles.

Idle Control valve did have some (very dry) carbon dust on the 'guilletine' viewable on the side of the ICV, that looked half open. I was able to manipulate it with my finger. Don't know if that's normal but figured I would go ahead and replace for the 119.30 it costs and eliminate that as a possibility.

Will keep you posted and continue to appreciate input from anybody out there that wants to add their two cents.