Not so long time ago, surfing the web [Last.fm: to be precise], i had found the great ambient artist: Andrew Lahiff. Some of his music soundscapes [especially Illusion Fields] very similar to original soundtrack of one of the greatest cyberpunk role-playing computer games: Fallout.
You can download almost complete discography from Russian tracker site [registration required]. And remember, if you really like his music, don't forget to contribute some cash via web-site stores.
Have a pleasant night!