I'm listening to a lot of soft stuff lately... I have a custom list in my winamp with some classical stuff, some Chopin, some Mozart, some Beethoven, some Schumann, some Debussy and some Wagner... all kind of 'sad' songs but I love them, they bring me peace and I just love to lay down on my bed and listen to them. The 'Etude in E major, Op.' by Chopin, 'Traumerei' by Schumann, 'Nocturne in E flat, Op. 9, No. 2' by Chopin, the classic 'Moonlight Sonata' by Beethoven and 'Claire de Lune' and 'Danseuses de Delphes' by Debussy are some of these stuff I can't stop listening to. Also, the piano concerto no. 23 in A major, the adagio, by Mozart is glorious.
Then, not classical music but a bit of Ulver... the Lyckantropen themes and 'speak dead speaker' are some of the other stuff I keep on listening.
Also some Bowie stuff, soft songs like 'Shadow Man', 'The Loneliest Guy', 'Slip Away', 'Space Oddity', etc etc...
And there there's an exception: 'Never Get Old' is a cool song by Bowie that I like very much because it puts me in a good mood... I don't know why, heh.