I am also contemplating buying an X5, coming from Lexus. I'm used to touch screens which have worked well for me. A few questions: 1) can one or more of the 6 preset buttons be used to switch SAT radio sources, 2) when you use the preset buttons to switch sources, what happens to the iDrive screen--does it switch over to the selected source? If not, how do you tell the new source? 3) When you use the mode button to switch audio sources, does it switch through all sources (ie: FM, AM, CD, SAT radio, iPod, HD radio, etc)? Thanks!