My wife has the Acura RDX with Technology package. The 4-cylinder Turbo engine gives you good power AND good gas mileage. We also test drove the BMW X3 and liked the Acura RDX the best.
The Technology package is really cool. Navigation w/ voice activation, Bluetooth, Back-Up Camera, Satellite radio, and some other bells and whistles. BMW charges a la carte for all of these options, which adds up fast. You get alot more ammenities for your money when you compare Acura and BMW. The X3 and RDX have a similar base price, but loaded, the RDX is substantially cheaper.