http://www.amazon.com/gp/help/custom...?nodeId=537868

I have not had any problems with the marketplace vendors I've payed via Amazon.com. My most recent purchase was for a new speaker system that Electronica Direct had cheaper than amazon's price. I ordered it thursday and I was using them the next day (with standard ground shipping).

They do see your address and CC# because they are the one taking your money for the product, but if there is an issue with what you ordered (damaged, arrived late or not at all or with missing parts) amazon is your arbitrator and from what I have seen in the past, amazon cares more about their reputation with their customers than their vendors, so you should be ok.

Not to take food out of amazon's mouth, but if you are looking for cheap cards...."Hey have you met Newegg?".