Migration current data to new Droid X

Can I use the Droid X calendar features withOUT automatically updating my GMail/Gcalendar information online? I would like to keep my PIM data local if possible, for privacy reasons. But I have read on other threads that if you do NOT sync, your calendar will be read only (on the smartphone).

What I would like to do, is to use the calendar, and then back it up to my pc occocasionally. Without syncing all of my data to my online gmail/gcal acct.

Thanks.