OaAz
Owen and August Zone

Favorite links from Shoutcast: better get Winamp first if you don't have a streaming audio player. Most of these are a bitrate of 64 or less.

Reggae from BigUpRadio
HiNRG Trance from DI
Some Floyd , for old times sake, from Nothin but Floyd.
Elvis (the king, not Costello)
Tokyo's best Rockabilly/Punk station , which seems to feature a lot of the other Elvis.
From the stealthy killer Tokyo Ninja Radio
Secret Agent lifestyle station from SOMA FM

If you like a station, check out the broadcaster's site. You generally don't find this stuff on your dial.