Enrolment

I have a client that has a need to have different methods of payment allowed for their total tuition. The student may choose to pay Quarterly, Semi-annually, one or two payments. They want access to the site restricted if the student has not paid their payment.

I can set this up using Paypals's Apache Authentication (.htaccess & .htpasswrd).

I guess my question is - could their be a single sign-on solution for these students?

It's not a big deal to have them log in twice but these are allied health students and computers tend not to be their forte`.

Thanks,
Tony Ruggiero