Going home after a 22 year absence-help!

I am in need of information.Will relocate back to Canada in July of 2008. My children`s citizenship and passports have been completed and my wife`s visa is presently in the works. As an expat what documents do I personally need to complete in order to return home. I understand that it is not easy, but have no idea about the actual forms I need to fill out and who to send them to. Your help on this matter would be greatly appreciated.