I have about 600 to 700 domains that I need setup on my server. I have the domains listed in about 10 categories so I would like to categorize each category to be setup as it's own reseller in cpanel with domains grouped in that category. On each domain I want a different wordpress site with it's own database setup on it. My server runs cpanel and auto installation of wordpress is just a click of a button and telling it what username and password to use. Perhaps a simple cron job could be setup to automate this process.
Also, I would like the theme and plugins that I have setup on one of the domains to be used for all of the others except a different header image for a few.