What you have in the
cockpit will
work. At your work station I suggest a Ubuntu powered
laptop and a GlobalSat BU353 USB
GPS puck. Install a few handy
GPS utilities, and then
OpenCPN and the free NOAA charts if you will mostly be in U.S. waters. There are copies of CM93 world portfolio that are woefully out of date but still fairly useful until you get to areas with NavAids and shifting channels or bars. CM93 plays nicely on OCPN. OpenCPN can also run on an Android device. I like using it on a Note 3, for convenient portability. The Note 3 is far from waterproof, but you can slip it in a ziplock bag and operate it right through the plastic. OCPN can also run on WinDOHs and I dont know, maybe even Mac. But not, to my knowledge, on an ipad or other ithing. And
INavX gave me so much trouble that I ended up tossing my nice jailbroke and unlocked
iphone 4 and
diving headfirst into the Android world. So I owe a bit of gratitude to
iNavX for making me finally see how messed up the iWorld was and how much better Android is.
Oops I re read your post and I see your question was regarding Navionics, not iNavX. I have used a couple of their packages and it is okay. But OCPN is a lot more flexible, is open source, and runs on two open source operating systems. Once you get comfortable with it, you will wonder why you ever used anything else.