Google Calendar Sync works great- try google Docs too
While at first bummed to think that my calendar would be out there on the web, instead of a more data-secure cabled sync from my pc through a USB to my Droid. But now I'm getting to love it. I don't even have to remember to sync. I have it set to automatic, although I can always click in the tray to get it to sync on demand, if I just made some changes and want to turn off the computer soon.
I just wish you could also sync the Notes from Outlook. CompanionLink (I believe) will do that via syncing to the Google Contacts, with each note prefaced by the word Note...
Google Docs can be used as the repository for Outlook Notes thru an app that costs some $$ called gSyncIt. I have the trial, and it works fine, but for only 20 notes. I have been hoping to find a free alternative, but I may have to buy the whole thing.
Love the Google Calendar, though. Even has the weather forecast for each day in it. Recurring events that you delete work even better than in Outlook, because in Google Cal you can say to delete any future events, whereas in Outlook if you delete it's one or all. I like having the history of completed events stay in the calendar. Try it!