D'oh, I had a huge post about my further experiences with Google Calendar but my dog ate it because my session timed out (yes its a bug I should fix, but generally I dont' write very long posts).
The summary, I like Google Calendar. I imported my ics file from Mozilla Sunbird with only one glitch, event times were moved ahead by 3 hours. The web interface is quick and responsive that it wasn't too tedious too fix the events, but I only had a handful to fix. I then subscribed to my new google calendar in Sunbird on linux and iCalendar in OS X.