Is there an iPhone App for reading PDF files? After having used Eucalyptus and Stanza apps on my iPhone, I really can't read printed books while traveling any more.

What similar app can I use to transfer, store and read my own pdf files on my iPhone?

I know that Stanza has a Windows application that converts PDFs for iPhone, but I am not a Windows user.
GoodReader is very handy.  You can wirelessly transfer files and you can even add any web content to the GoodReader library simply by  placing a "g" in front of the URL in mobile Safari.