GPS Software Suggestions?

I never would have imagined this being such a pain in the arse. I am looking for a good software/mapping program to use on my 54 with the U-Blox GPS engine. I have tried the Co-Pilot and am just not thrilled with it. I ordered the Delorme and it won't even work with U-Blox, at least according to there support dept. I loved my Garmin Mobile PC software as it was very simple, easy and always worked with my 30's. They are not supporting it any longer so the mapping is getting outdated.

Any...

GPS Software Suggestions?