Bulk domain registration script

I require a script that can bulk register domains at some of the various free domain (and subdomain) providers. I will provide a list of the providers for those who are interested and can perform the job. The script would be required to accept a .csv file of all the domains and IP addresses to use. It would then login to the appropriate domain provider and register these domains, change their IP addresses (zone records), and dump a report showing confirmations and failed registrations. Some of the sites do have a CAPTCHA upon confirmation of the registrations and/or during login, which would require a popup for the user to input the text. The script should accept time delays as an input, as well as be able to run through proxies.