I'm seeing more and more of the new 5'ers on the road and I really like em.
I've owned the E39 540 and an E60 550 LCI. There is an F'10 550xi on the show floor at the local BMW that I've been drooling over too. I really like the exterior evolution from the Bangled E60 and the new interiors are the nicest I've seen offered in a BMW (damn near as nice as an Audi's)
If I didn't need the utlility of the X5, I would be tooling around in a 550 or 535