Sorry I haven't replied earlier. Congrats on buying the Zoom H2n.
I mainly use the H2n for my guitar lessons. On one hand I record the sessions with my teacher, then I place the H2n in between us and I record in 2CH mode. My guitar on one channel, my teacher on the other. When I just record myself I choose the XY mode.
The recorded sessions I then import in Garageband or Audacity (the latter deals best with the multitrack modes, both 2CH as 4CH). When I record (and film) my guitar homework, I use Final Cut Pro to merge video and audio.
Since I record several times a week I tweaked down the wav-settings to 44,1kHz /16bit. I find it offers the best compromise in sound quality and disk space. Recording in WAV 48kHz / 24 bit filled up my HD far too fast.
I don't know if you already noticed that creation date of the audio files doesn't transfer to the mac. Every single file has 1/1/70 as creation date. I use BatchTouch to add a creation date to the imported files.
Regards and I hope you enjoy the Zoom H2n.