I found this really great bit of Flash the other day that creates an XML file which plays any MP3 that I upload to a server and link through the flash. The quality is fantastic and it loads so fast that you'd think the song was playing off of your computer! So I found a nice free hosting site (FileDen.com) and put a dozen or so songs up there for now.. you can choose to play whichever song you want or just let it play through them all. Then I put together a simple little html page to play the flash from. It's really neat because no matter where I'm at I can always pull this player up with a link to the html, check it out!
Mark's MP3 Player and you can copy and paste the html anywhere you want, so you can have the player in blogs, on a website, whatever! I'm a geek!