Steps to change your ISP

Does any one have a step by step list to what needs to be done for switching ISP? Starting with finding out who owns the domain name, nslookups, how to transfer the dns either fax, email, user name/password, looking up to make sure records are duplicated, moving the web page, when to transfer the dns over.
Any one that has a start of check list would be extrememly helpfull.