I have to agree with Matt. While Delorme's Street Atlas had a somewhat steep learning curve, it included many features that are not available on any other software. I was hoping that when Garmin bought them, they would end up with a product that combined the best features of both companies, but instead, they just killed Delorme.
While I often see posts describing software that is "just as good", I have to believe that the posters have never used Street Atlas to plan a trip. While there are many GPS based mapping devices that will get you from here to there, none that I've found can plot a long trip on non interstates. Street Atlas is sorely missed.