I just thought I'd add a quick little note here in support of Dropbox.
Dropbox has been an absolute godsend to me. I am such a non-tech person and quickly needed to have a tool for a client to send me a large amount of audio files. Dropbox was so easy to get started with and it was so easy to have my client share files with me. And being the non-tech person that I am, I even contacted them, and like you, they responded literally in minutes.
I am a true Dropbox supporter. I love it!