I had trouble finding any good Series 80 videos where people weren't slamming the hammer into the frame without the slide on or where they explained anything in detail - these are good, and this guy has a pretty good system for putting all those little parts back in without struggling:
Disassembly:
http://www.youtube.com/watch?v=EWjHv...eature=related
Reassembly:
http://www.youtube.com/watch?v=nr5Wm...eature=related