Sweet! A thread I can really contribute to!
I am a huge fan of chilled trance and "chillout" subgenres of techno. I assume that you're looking for music with a downtempo beat, and less of the ambient (little-to-no beat). Though if you're looking for ambient, I've got some good stuff too.
Some of this stuff is less electronic than others, but all are downtempo (which I assume is what you're looking for?).
- Delerium is great. Can't go wrong with any of their stuff. They use a lot of different female vocalists for their songs (including Sarah McLachlan).
Flowers Become Screens is their most well-known (and rightly so). I'd recommend getting the radio edit of the song, as the original from Semantic Spaces is a bit too long and doesn't flow as well (in my opinion). I also really like a song they do called
Paris.
- William Orbit. He's a big time producer (produced some Madonna records) but an awesome musician in his own right.
Water from a Vine Leaf is one of my favorites, but definitely check out his other stuff too.
- Cafe Del Mar puts out albums of a huge variety of artists, all with downtempo stuff. Seriously, do some searching for "Cafe Del Mar" even on youtube and you will find a TON of downtempo music. Really good stuff, and you have well over a dozen CDs to choose from. One of my favorites from their collection is from Nacho Sotomayor called
Dreams (image used in the video might be NSFW)
-Enigma. Mostly known for their hits
Sadeness Pt. 1 (a song about the Marquis de Sade) and
Return to Innocence. But their entire collection is nothing but awesome downtempo songs. Even their lesser-known songs are very good