Can anyone direct me to a beginners tutorial on the use of the PCV system? I'm pretty much clueless so I need to start at the kindergarten level.

Steps 1 through 19 right here if you just need to load maps:

http://zx14ninjaforum.com/messages.cfm?threadid=129B662B-CA75-AB2F-EB394CD496563332

If you get into it, the entire capability of the PC5 is covered in that. I have a few other DJ product tutorials about the LCD (superseded by the POD300) and AutoTune (or Wideband 2 if you prefer). I'm pretty sure all links are included in the PC5 tutorial.

I haven't gotten to the Ignition Module yet but will have that by next summer. The Ignition Module is pretty simple compared to the PC5 I believe.

It's always a good investment to have a PC5 even if you get a flash someday. Autotune is also still valid even with a flash.