Membership registration including blog creation

Hi,

I have installed membership plugin and it is working like a charm. I am able to do user signups. However i want to know how to enhance the registration form to include blog registration as well?

What i want to do is:

A user joins my website (through membership plugin) and register’s his own blog. After registration Pro Sites plugin will let him choose additional paid functionality.

Is it possible to do without any PHP custom coding ?