We have a gaming tournament community that we are wanting a credits based payment system for. Users would purchase credits (via Paypal)from our store and then be able to spend all or part of their credits on the site, to enter tournaments. We also need to be able to add credits to their accounts, or make refunds, from the Admin side. Admins need to be able to set the credit "price" to enter a tournament/ladder (via our tournament script.)
We also have a function which allows our users to sign in on our homepage, which automatically signs them into our Community site and our current tournament script. We need this ability added to our new tournament script.
I have done paypal payment integration with membership for several sites. We are experts in doing this with a powerful admin panel/CMS backend.
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Regards
Babu