there used to be an excellent site called tracklistings.org - real trainspotter's dream with tracklisttings for EVERY essential mix up until march last year.
for some reason they no longer do it.
i spent months searching out gems such as:
Paul Oakenfold's Goa (i only had an original tape mix of that - now on cd but unfort. without the pete tong voice over - "firmly marked down on the hippy trail..." "...backpackers, ravers and hedonists..." "....his full moon party, his goa mix..." "...and we're not going out" ;-)
Sasha '94 - the birth of progressive house
Digweed '95 in his renaissance 2 era - gorgeous stuff
Danny tenaglia '94 - pure house
Sasha live at Amnesia '96 - banging
took months, but is possible. i got most of them by joining a forum which allowed people to swap. you upload something cool, they let you download something cool, and so on.
do a search on that sort of thing in google.
otherwise take the easy way out, i have seen the complete oakenfold live collection on ebay for 50 quid, same goes for sasha and others.
p.s. search for essential mix tracklistings in google i think there is another site somewhere which does the same as the original tracklistings.org
p.s. this is the most conclusive evidence yet that i am a geek