techno has two meanings -- it's funny -- for europeans they mean stuff with no vocals, really underground "hard" stuff -- for americans, when they say "techno", often they mean what in europe is called "dance". And "dance" in europe is a lot more mainstream and pop-oriented

for "american" style techno (i.e. european "dance"), the best example I've found is this (itunes link):

http://phobos.apple.com/WebObjects/M...Club+Hits+Vol+

strangely it's called "euro club hits" ... which makes things even more confusing ;

for "european" style techno... i.e. the stuff with no songs, I recommend going to www.beatport.com and checking out the stuff in the "techno" section --