Is there a way to connect your computer to your home stereo? I've wanted to do that since discovering this site:
http://www.archive.org/details/etree
It has hundreds of live concerts by the Grateful Dead, Little Feat and others which can be streamed and in some cases downloaded. GD audience recordings can be downloaded, but soundboard recordings cannot. Live music is just one area on this site. There is all kinds of other archived resources. Check it out.