I'm not an X5 fan (just seems dated and overpriced to me) and, while I never owned a Japanese car before, I purchased a new Nissan Muranno LE (Top of the line) not too long ago.
Very happy with it, comfortable, soft leather, Bose sound, good pick-up, good mileage (avg 21.3 mpg).
I looked at all of the competition and went this way.
You should be able to pick up a brand new one at the price you quoted for the X5 - less if you go for the S or SL models
2001 325ci Convertible - Titanium Silver
Sport Package, Premium Package
Racing Dynamics Strut Tower Brace
Conforti Shark Injector, Conforti CAI
Interior: Leather, Euro Tray, M3 Dead Pedal