I finally got around to ordering a stand-alone copy of Outlook 2003, which arrived today:
Not wasteful packaging at all, there.
I’m using it for Contacts and Calendar as I’m happy with Gmail for email. I’ve set up the free Plaxo.com toolbar to keep everything web-synchronized, backed-up and accessible from anywhere. I’m sure Google Calendar (if it even exists) will rock, but I really need a solution now.