That file is pretty big for a text file so I'm going to start a fresh one, let the app crash again, then repost when that's done... hopefully tomorrow.

As far as hardware, I can assure you it's not a hardware issue. My Macs are having no problems whatsoever, other than bitcoin. And bitcoin wallets are NOT that resources intensive. I do photoshop work that uses tons of memory and maxes out most of my CPU. Bitcoin is a lightweight compared to that.
But to answer your question, one of the computers has 16 GB of RAM, the other has 4 GB.
One is a dual core i5, the other is a quad core i7.
Both are 2012 Mac minis with intel HD 4000 graphics.
I don't have any kind of active firewall, just a standard router.