Thanks rdegges. I am aware that Amazon S3 is the "de-facto" in storage right now (and it has been for a while). The problem is that I am not able to come up wit

Thanks rdegges. I am aware that Amazon S3 is the "de-facto" in storage right now (and it has been for a while). The problem is that I am not able to come up with an estimated monthly cost, using their calculator (data at rest, in transit, downloads, uploads are charged differently). I would love to use Amazon S3, but do not want to find out months later that bills are higher than what I charge my customers. However, I believe that your answer still helps - it's what I have suspected. Looks like I will have to bite the bullet and try S3, do a "best effort" estimate and learn as I go...