This may answer some of the questions here about "free sheet music" downloads and more. I use PG Music's Band-In-A-Box v.11 to create fakebook-style lead sheets from existing midi files, both my own and those from the web. This is virtually like being able to download free sheet music. BIAB's "import chords from midi file" feature creates editable and printable lead-sheet sheet music that is actually much easier to read than standard fakebook music. Using a MIDI file search engine like:
http://www.musicrobot.com

you can find and download midi files of specific songs. Also, you can do a Google search for "band in a box fakebooks" and find downloadable personal collections of songs on the web that spans into the thousands.

I understand that the new version of PG Music's Power Tracks Pro ($29) now also has the "import chord" feature from BIAB. Both programs are available from:
http://www.pgmusic.com/