It looks like there's something wrong with the checkout (or I did something wrong)... 3 times I entered my card number, expiration, etc and I keep getting kicked back out because of "Invalid Shipping Method" for the PDF file.
[attachment=0:3ns7dlgc]SHIPPING.jpg[/attachment:3ns7dlgc]
I think you should charge at least $10 for the info, and $40 or whatever it takes to cover the additional cost of the printed material... you can't get anything for under $10 any more.