Take old phone, connect to desktop manager 6, fo File>Switch Devices, it will backup all your contacts, notes, emails, settings, BBContacts, etc. When promoted connect new handset, it will transfer everything over including all compatible settings, like example your screen brightness setting. Once thats done it will restart and your new handset will be remarkable similar to your old 1, most of your settings should be the same, all your contacts and emails will be there, even most of your installed applications. When i did it the only app that never went over was mxit, but FB/MSN/GTalk/ETC all went over.
It will also update your pin with all your BBContacts handsets without requiring re-invites, they accepted your invitation on your old handet so that authorization transfers over. Then just login into mobileemail and it will detect the new handset and update the push mail route.
Just check your handset and make sure all your apps are over and your done.