One of my all time favorite instruments. There are very few instruments that can be played as though the music is not coming from in front of you, but is being washed over you. It can engulf your entire body and carry you away with its sound.
Zoe Keating has an interesting technique of [ame="http://www.youtube.com/watch?v=rJiybW81mXA"]looping[/ame].
I'm thinking of picking up her cd. Any other suggestions for solo cello artists?