Thanks for the reply. Unfortunately, I don't have an option to work with any of the processors with whom Shopify can directly integrate. Manual payments aren't really an option for us either, at this time. I simply don't have the staff to handle the checks and balances required for managing a multi-step process.
While shopify is a wonderful system, unfortunately it is not able to meet our current needs I fear. It would be excellent if I were able to export the cart total - for this is the only information I need to export. And I don't want manual entry of the order amount.