If you want to goin at the deep end and try something a little more 'organic' try something by Brian Eno from the mid-seventies onwards. First ambient experiments by Eno was Another Green Day from about 75. From this period also try Kraftwerk, Tangerine Dream and even look into some prog rock artists such as Yes and Genesis. Later stuff should include the Orb, Lemon Jelly, United Future Organization, Leftfield, Howie B, William Orbit, The KLF etc. Some Acid Jazz and Jazz Funk artists did some great chilled out tunes. Cinnamon Remains (DJ Jazzy Silver & MC Matteus Limpio) are due to release an 'organic ambient' LP entitled Where went the warm Jets- a departure to their Hip Hop and Prog Rock roots.