I think that I am finally getting why much of the "music" for running is mindless dance beats with no melody. Read this
steveboy.com/blog/?p=762 I guess it does make sense. One good thing about Podrunner is the very wide variety of beats (BPM's) . Most of this stuff on the Internet - including the C25K+ podcasts are too slow for me and I cannot run to them. (although I have now figured out how to increase their tempo)
He also seems to have a good variety of running programmes -- has anybody used them?? Unfortunately he only provides the Podcasts with no info about what is inside them. EDIT -- I have now found the list of intervals inside each programme.