well i'm not that like sticking to old tunes, although i have my favourites...i try to listen to new stuff very often, last year passed from axé music (brazilian pop style) to middle east pop, but now i'm in like a non defined path listening to:
Camera Obscura, Fischerspooner, Blackfish, Vitalic, The Andrew Sisters, The Puppini Sisters (very old fashioned but current band), as for now, but who knows what'll tomorrow might bring
As for chill out mood, i´d recommend Alison Krauss, Enya, Vangelis and even Yoko Kano music.
@Da Rock: Lighthouse family is just great as well!