Thanks, Jasoraso, that will be helpful in setting up my system. I already have 1.2, but no SD card yet.
What I'm wondering is whether you had to jump through any hoops to update your stock partition this time, so that I know what I'm in for with future updates. Would sideloading the .zip from B&N's website to the root of the stock partition do it, would I apply the update via CWM using B&N's .zip, or would I have to wait for developers to produce a CWM-compatible version? Would there be any danger of a future update overwriting my dual boot?