This seems to be inexplicably difficult, but thanks to oct8vio’s posting here: http://www.google.com/support/forum/p/Calendar/thread?tid=50f2db1de3784fd8&hl=en I was able to get more than just my default Google Calendar to pull into iCal. The trick is to set up an iCal calendar, using the Google Calendar ID, and a carefully-constructed URL detailed in his post. Note that this did [...]