Hi Paul,
I'm using SkyDemon and would suggest that you download the trial version (30 days) before parting with cash. If I plan the flight on the PC it gives me all the current weather and notams. I then print the plog which gives me all en-route frequencies etc sync to the SD card and pop that in the portable device. It's as easy as that.
I happen to use my NATS Air Aware hardware and swap SD cards between Sky Demon and Air Aware depending on my needs.
Happy Hunting