I don't know how fluffy you want your ambient to be, but you might want to check this mix:
DJ Viddy - Music For A Sore Conscious
01 - Gary Joules - Mad World
02 - Brian Eno - First Light
03 - Underworld - Most 'Ospitable
04 - Yanni - Whispers In The Dark
05 - Aphex Twin - SAW Vol. 2 CD 2 TRK 8
06 - Sigur Ros - Svefn G Englar
07 - Brian Eno - The Plateaux Of Mirror
08 - Alan Silvestri - Small Moves
09 - Thomas Newman - American Beauty
10 - Akira Yamaoka - Forest
11 - Boards Of Canada - 5-9-78
12 - Sleepy Town Manufacture - Kabyn
13 - Roger Waters -
14 - Autechre - Kalpol Intro
15 - Spooky - Belong [Bassless Ambient Mix]
16 - Underworld - File #11-05-01
17 - Boards Of Canada - Everything You Do Is A Balloon