I use
Paypal[
^] with
eJunkie[
^] to sell software. First I set up a business Paypal account, then put my software on eJunkie and embedded links in my web site. A customer clicks a
Buy
link on the web site, it directs them to Paypal to pay using either their Paypal account or a credit card, then emails them a download link.
The money shows up in your Paypal account automatically. It works quite well and the instructions to get it all set up are on eJunkie and very simple to follow.