I've been going through my iPod trying to put together a playlist for the upcoming bike ride. I've had something put together for a while, that I used to listen to during warmups for my lacrosse games. I've added a lot more to it (I'm up to about 6 and a half hours of music), including a section of more mellow music in the middle to relax a little bit, after the louder, more aggressive music. Send me some suggestions so I can expand my collection for the ride. I'm looking to get up to about ten hours of music.