Like other years, the South by SouthWest festival offers free downloading of its music.
This year, they offer no less than 3.5 gigabytes of music via BitTorent via the following link:
SXSW_2008_Showcasing_Artists-Release_1.torrent
You can also retrieve the pieces from previous years on the links here:
http://hewgill.com/sxsw/
There is enough to fill an iPod quite legally and without having to pay anything.
For more information about the festival:
http://sxsw.com/
[translation by jeremy]