Here are some awesome ones not mentioned yet: For the down-tempo or similar "trip-hop" we have Massive Attack-any of their records are must haves. Also, Faithless would fall into this catogory-I have seen Leftfield mentioned here which is also good, but IMO not up to the above mentioned. A side project of FSOL, Delerium remaines one of my favs- especially Semantic spaces, Karma, and Poem. This is some GREAT electronica-dark, delicious, sexy, and Hi fi sound that has to be heard. If anyone finds this music interesting and infectious like I have you might look for a new release from Balligomingo-the only one on the shelf as it is their 1st release-Awesome! Well I could keep going-if anyone finds any of this interesting I have much more to add to the pile...Great stuff mentioned in other posts as well- I am making a list!