Gravity Forms and WP Types plugin and alternative payment methods?

Before I decide to but they Gravity Forms plugin I'd like to know is it possible to use your plugin with the Types WP plugin http://wordpress.org/plugins/types/ ?
I'd like to create a registration form that allows users to:

• register at my WP site using a custom role assigned to registered new users
• post content (text, email address, phone number, pics) via the form at registration
• add add the posted content into Types' CPT fields so that users once logged in may edit their CTP content they submitted via the form

I'd also like to know is it possible to add other payments method than PayPal so that the users' accounts are registered only if their payments are received. I've got a 3rd party's payment method API that is compatible with WP.

Ok thanks for your very informative and quick answer. One more question:

Let's say users provide their email addresses via WP Types CPT plugin so the email address are stored in DB. Each user has a CPT page assigned to display his personal data dynamically. Is it possible to insert Gravity email contact forms into a CPT php template so that their email addresses are dynamically used for contact forms at their pages? I mean the same email form is used in the template but recipients' emails change depending on a CPT page viewed. The contact form would be inserted into CPT php template and users would have no access to its configuration.