Your screwed unless you did a backup or sync to your Mac recently. if that backup was on the pc that went out of town then you have no backup file to work with. If you can do another backup now with the broken BB you might be able to get it done as described above.
If you did a sync to your Mac, and if you're getting another BB, you can just sync it to your Mac. You will get all the Mac contacts onto your new BB that way. Just be sure to tell Mac Desktop Manager to "Combine Contacts" rather than overwrite anything. And do a backup of your Mac before syncing your new BB as sometimes that first sync does stupid things.
If it's not another BlackBerry you're getting you might still be able to sync with your Mac. Nova Media
makes iSync Plugins (you have to pay for 'em) for a variety of phones that lets them sync with your Mac via iSync. I've used them for a variety of Nokia phones, but they also support a ton of other brands. Plus they have a new app for some of the Samsung phones called Fone Sync.