Programming music

What's your "programming music", i.e. the music you listen to while coding?

I usually listen to KOTOKO, Sakura Wars OSTs, Love Hina J-Pop albums, and Final Fantasy Piano collections

I'm pretty much still a beginner, and so I find it best to help with music that aids concentration. I personally like the Ambient Nights mixes. I downloaded them via bittorrent some time ago, I think from SuprNova when it was still around. Good, low-key bacground stuff. Not too distracting, and better than silence.