Wireless Music without Server

I want to put a Network Storage Device (like this
http://www.linksys.com/hdd/)
on my (soon to be) wireless network, rip all my CD's to MP3, put them on
the share,
and have a boom box or radio that can play them. I've looked at this from
Creative
http://www.creative.com/products/pro...sp?prodid=9192,

and from Linksys,
http://www.linksys.com/products/prod...id=38&prid=631.

But these all require a "server" application to serve up the media. I'd
like to simply be able to "browse" a
network share, load the MP3's and play them, like WinAmp does or an MP3
player.

Is there a device or way I can do this simply?

e.g. I don't want to have to have a computer turned on to listen to the
music someplace else. Just a shared network HD.