PayPal has a shopping cart and will send you email notification when you have a sale. You can set up rules in your email, Outlook or OE to auto respond with an email that is sent to the buyer with a link to the download.
Here is a link on how to set up rules in your Outlook mail.
http://www.i-resign.com/uk/resignati...outlookexp.asp
And here is the info on the PayPal Shopping cart:
The PayPal Shopping Cart is based on simple HTML code. Here's how it works:
Implementation:
Enter the details of each item you wish to sell into PayPal's item form
PayPal will generate custom HTML code for each item you wish you sell
Copy the HTML code and paste it into your webpage files next to each respective item
This code will result in Add to Cart buttons on your web pages
Additionally, PayPal will provide you HTML code for a shopping cart icon to place in the upper right-hand corner of your webpages. This icon will link your buyers to their carts.
The Shopping Experience:
Buyers on your website will click the Add to Cart buttons next to each item they wish to purchase
The Add to Cart buttons will launch a mini-browser hosted by PayPal. This page will display the contents of their PayPal Shopping Cart, including: each item's name, number, quantity, and price. It will also include the shipping, handling and total
From this mini-browser, your buyers can change the quantity of an item, delete an item from the cart, continue shopping, or check out
If a buyer clicks Continue Shopping, she will be taken back to your site. She can return to her cart by clicking the Shopping Cart icon or by clicking Add to Cart to purchase another item. If a buyer clicks Check Out, she will be taken through the PayPal payment flow
A Purchase Is Made:
When your buyer completes payment to you:
The funds will be instantly credited to your account
You will receive an email notification
The buyer will receive an email receipt
Receive Instant Payment Notifications
The details of the transaction will appear in both your history log and your buyer's history log, if the buyer is a PayPal member
Download your Shopping Cart details