Microsoft Streets & Trips 2005

Pros: Ability to import your own map data from a simple text file, excel and other sources.

Cons: No voice annunciation.

Summary: We tried Street Finder, Trip Maker Deluxe and others, including online maping. You can't beat this one for the money. True, the online versions are free, but logging on while driving down the road is not affordable for most of us. We have found MS Streets and Trips to be just as accurate as the online versions and certainly more customizable. There are some support groups too, like Discovery Owners Association http://www.discoveryowners.com/cginfo.htm who provide updated mapping (pushpins)information for places like Wal-mart, Sam's, Flying J, Petro, etc.
We use it extensively and love it.