A few recommendations for an ambient - downtempo sound... (Artist Album)
Future Sound of London "Lifeforms", "ISDN"
Kruder & Dorfmeister The K&D Sessions
Peace Orchestra Peace Orchestra
Cafe del Mar Vols. 2, 3, 6.
Koop Sons of Koop
Solar House Magic of the City
and a bonus recommendation as they are so good -
The Cinematic Orchestra All albums. :)