Several user registration formularies

Hi all,

I'll explain my problem.

1) I've defined two different rols: Reader and Creator.
2) I need two different registration forms, one for each rol, because these user have common atributes but distincts too.

Example:
User - Reader : Name, password.
User - Creator: Name, password, curriculum (archive upload)

Is there any module to create two different ways to register an user with specific atributes and roles?

If there is no module, what should I do?

Thank you.