Take notes on the parts that aren't clear, and if possible, what finally makes it click for you. The notes and diagrams that etotheipi wrote when he was writing Armory are very useful, and you can help by expanding that.
Good Idea. BTW, where can I find these notes and diagrams? I took a quick glance at the BitcoinArmory repository on github and the Armory web site and didn't seem them. Are they somewhere in the main bitcoin github repository? I'll look for them there tomorrow.