You didn't mention anything about your interests? You missed both Railroads and Marine. Of course, being in Iowa, I have my doubts about the former...hi...
By the way, UniTrunker and PDW really won't work well, if at all, with a headphone connection. You have to make a connection to the discriminator to get reliable decoding. I don't know much about WinMCDC, but it sounds like it too would need a tap to work well. ACARS is so slow in comparison, and besides, a discriminator isn't involved in AM reception.
We have a lot of information on this in our wiki...Gotta go - wierd - we have a Thunderstorm in January! Be back later for questions...73 (best regards) Mike