payment process/cart for digital download online store?

i just took upon a new project at work selling media downloads online. just wanted to know is there another option besides paypal micropayment. A lot of the services i see around r charging montly fees that included site hosting which i don't need. I prefer pay as u sold, but not like 30% that's just too high for a dollar transaction. any pointers, tips or suggestion will b greatly appreciated.

See original post by seewin