OK, next question on Amazon. I have never bought anything on-line. Last time I bought anything from the U.S., I had a U.S. bank account and wrote checks. That was ages ago, and it worked fine. Now, I have to get me a credit card, a paypal account , and try my luck @ e-shopping. My main interest is in prep-books and a few things like esbit stoves.

So, let's suppose I want to buy this DESK REF book. How do I know which seller is best ( most trustworthy ) ? And are there any tips and tricks I should learn from you guys e-shopping experts ??