Aloha marcus,
I purchased a 2008 Lexus RX350 last December and use the hands-free system on a daily basis. I had to manually enter in my contacts, as Lexus doesn't provide for any way to transfer contacts via Bluetooth. I also looked at the Mercedes-Benz ML350 and the BMW X5, but really couldn't justify the extra costs involved.
I wanted to purchase another SUV (to replace my 2002 Lexus RX300), but one with Bluetooth. My model also has the Nav system, which I don't use here in Hawaii, so if I get the 3G iPhone its GPS will only be used when I an on vacation.
My only complaint is that the microphone is only on the driver's side - when I called my Grandmother, she could hear me just fine, but had a hard time hearing my wife from the passenger's side. Still, the Bluetooth system in my Lexus painlessly paired with my iPhone and works flawlessly. I work on an Army base and am precluded from using my cell phone while driving except while in the hand-free mode.
HawaiiMacAddict