Wish I had some skillz in electronics for this. Looks like fun:

http://www.techdesign.be/projects/020/020.htm

That's pretty neat. I would not necessarily attempt it but this is a great little electronic project.

Thanks for the link.

It wouldnt be perfectly accessible for most to try because we wouldnt have access to program the chip, but setting that aside .... that would be the only drawback to building one yourself.

Im sure both you guys could do it if you had the chip

Here is another diy mp3 player.

http://www.pjrc.com/tech/mp3/sta013.html

But that one you posted is alot better.