Hiding amazon urls when using S3, Rails and Paperclip -

I have just set up file uploads on Amazon S3 using Rail 3 and Paperclip. All this works wonderfully and up and running. There is only a small description that I want to sort. At the moment, the URL is the Amazon URL (i.e., starting) and I would like to start them from my domain.

I have already added the Nexcari CNAME record to my DNS and they are working fine so that I can access the files through the subdomain of my domain. The problem is that the paperclappers are generated URLs start with the Amazon domain. An easy way to score a paperclip config? Take a look at

Cheers