Thanks for all the help. Actually, my eventual goal is to build my own 6502 based kit computer, but that's a loooooong way down the to do list. I've always been fascinated by the skill and vision needed to build something like a whole computer from scratch, and I hope to be able to do the same some day. The Apple II was the first machine I ever used and pretty much set the standard for me to compare others to my whole life.

I figured learning asm for the 6502 would be easiest if I used the II as a frame of reference, especially considering how woz's mind worked while designing it. The plan is to build as many of the peripherals as I can myself, down to the firmware, so I intend to use the II as a prototyping system since it's 100% open when it comes to building new boards for the slots, etc.