I forgot to include a link yesterday. PianoFiles.com is a great site for anyone interested in piano music. Once you sign up (free), you can search for anything you want, and if someone has it, you can trade for it via email. My member name is 2. Just the number 2 – the number 1 was already taken.
Here’s a link to my member page. And trust me, when I say they have everything, I mean everything. I found some rare Horowitz music that my piano teacher couldn’t find.
They also have a WebChat utility on their site that allows you to talk with people who are currently online at PianoFiles. It’s a great site.