Actually, what would be IDEAL is if Entourage could do it...but to answer your question, I purchased a PC as an accessory for my PowerBook, and I want to keep my Outlook contacts reasonably in sync with Entourage. So I used the sync Entourage-Address Book script; now I just need to figure out how to get them into Outlook.
I tried exporting contacts to one vCard - Outlook doesn't support importing multiple contacts from a single vCard.