Supercar's been on tour in support of their new album, Answer, which is pretty darn good. More varied than the last two albums, you've also got some hipper-than-thou guest musicians (including members of ROVO, who Supercar recently toured with). Not exactly the "Radiohead of Japan" (that would be Downy), but still very cool stuff (check out the soundtrack to Ping Pong). They've also got a pricey live DVD worth checking out.
http://www.brainrub.com/adamd/music.phtml
http://www.supercar-net.com/