Mike I just picked up an X5 4.4, so far I'm very happy with it. The performance for an SUV is amazing and everybody loves the styling. Also the mileage is MUCH, MUCH better than my old Durango. The only drawback is that there isn't alot of cargo room compared to most other SUV's and the wheels get dirty with brakedust in a single day.
I should post some pics of it.