How is the current verson's navigation? I used 2002 for a two week vacation and while I love the text to speech, good directions, and great interface but the thing LOVED to put me on the wrong road.
If I were driving down a road or a highway with another road running parallel close by it would frequently jump to the other road and give directions from there.
Also, there were a few times in NC or SC where it decided it would be fun to lead me down muddy dirt roads into the middle of nowhere AT NIGHT. That was not very fun considering I missed one turn and ended up in someone's driveway (since it looked just like the road). The only way I could get out is turning around on their grass. They turned on their lights and I was afraid they were going to come out shooting
One other problem it had was that it frequently marked north/south highways as east/west and vice versa.