Sheet Music

The Old-fashioned way:

Patelson's - closed???
Fould's http://www.fouldsmusic.co.uk/

The New-fashioned way:

http://www.jwpepper.com/sheet-music/welcome.jsp

The 21st century way:

http://ovationpress.com/default.aspx
http://imslp.org/

HUGE LIST: http://www.acmp.net/www/links/C50