I'd buy an aftermarket NAV system, or wait a model year for some options. The DVD NAV in the 2004 Acura models is amazing. You simply talk to it, and it finds directions, phone #'s, points of interest, etc. With built in BlueTooth™, it makes the NAV option quite appealing. This is the future of navigation systems.
Not to mention, Acura has DVD NAV and OnStar™.
I still want a Legacy, though.