Re: Board Question #18958. You can find just about any piece of classical music using http://classiccat.com . It's a directory of places you can download free classical music, so it just links to other sites which have the actual music. A few versions of Jesu, Joy of Man's Desiring can be found here: http://classiccat.com/bach_js/147.htm
Also, don't underestimate the local library--I found 3 CDs (at least) at the Provo library with a copy of it; the nice thing (or tragic thing, depending on your point of view) is that classical music is almost never checked out so you usually don't have to wait to get ahold of it. It might also help if you look around using the title "Jesus bleibet meine Freude".
- Seoman, classical music buff