This band needs no introduction, IMO. However, if you're unfamiliar with the work of Simon Green, I would suggest going here. This is the final track on Bonobo's "Animal Magic" album (2000). It's one of my favorite albums. It's supremely chill and I think this track is the perfect start to the week.
The album "Black Sands" is Green's fourth and latest album. It was released in Spring 2010 and features 12 incredibly chill downtempo/electronica tracks. It's dark and contemplative. Check out Track 2 below and you'll see what I mean.
Enjoy and, if you like what you've heard, stick around. I've more drum and bass to share!