I found this new site that takes Paypal and sells gift cards to Amazon, B&N, and Borders. It seems you get the gift cards code in an e-mail right away. So you can buy an Amazon gift card code with your Paypal account and then turn around and put your new code into Amazon and buy whatever you need. Looks like a good workaround to me.
The site is:
http://instantgiftcards.net