a challenge, need an odd functionality

[XPINCHO]

Hi, im creating an online store with PS 1.6, but need to add some odd functionalities, any help appretiated, the thing is:

 I need to do some actions when a specific role user registers or modify its own profile, then associate the user account with a product in the catalog, exactly what you are thinking, the user will become a product, of course, only the user can modify its own profile, so the product associated will be updated as well...

this functionality could be a module, a hook or whatever that makes it work

 

thanks 

Felix