The ability to pay with a credit card (with PayPal) is an option with CSA Toolbox. If you your members pay by check (invoice). In order to validate the order as paid you will need to enter the payment in to CSA Toolbox.

Yes. With a few pieces of code members can log-in to the CSA Toolbox system directly from your website. We can also provide code so that members can sign-up for service or order shares. In the near further (2011) you can also change the background & colors to match your website