Yeah, leftism is simply brilliant. R&S good, but not as IMO. (Bitt - if you want samples...)

If you like Oakenfold and intelligent techno mixes, then you will probably find that 'Sasha and John Digweed' also hit the mark. In particular, 'Northern Exposure' (released in 1994) contains possibly the most wonderfully composed ambient techno mix I've ever heard;

satelite_serenade__keiichi_suzuki.mp3
cascade__future_sound_of_london.mp3
these_waves__young_american_primitive.mp3
raincry__god_within.mp3
out_of_body_experience__rabbit_in_the_moon.mp3
im_free__morgan_king.mp3
ultraviolet__kites.mp3
obsession__fuzzy_logic.mp3
water_from_a_vine_leaf__william_orbit.mp3
liquid_cool__apollo_440.mp3
last_train_to_lhasa__banco_de_gaia.mp3

You should also consider 'Renaissance - The Mix collection' (also 1994) which is regarded as a classic and ebays for over $100 in good condition, although this is a dance mix, (ie happy and bouncy, not dark or mellow)