You can get a brand new one from Amazon for like 22-25 dollars and be happy that nobody else has been wiping their boogers on it. Rockbox is free and ridiculously easy to install in about 5 minutes or so.
I have used Rockbox on a whole bunch of different players: Clip, Clip+, Clip Zip, Fuze, Fuze+, E200, C200, iPod Nano, iPod 5G, Toshiba Gigabeat, never fails to impress.