If you want the Address Book information only...head here and copy over the "AddressBook" folder:
/User/Library/Application Support/AddressBook
Now, if you want to drag over your WHOLE User folder, that will take care of this, and yes...your archived Entourage e-mail will be dragged over as well since it's located in your (/User/Documents/Microsoft User Data/) foler...this will also take care of all your personal preferences and everything. It's probably your best (and safest) bet to drag over the whole User folder.
Hope that helps.