Logitech really needs a Z-360 -- three-piece 2.1 setup based on the Z-560 (ala the Z-540 and Z-340 crappers).
Follow the Klipsch lead for those of us not needing surround sound for computers. That's why I have a home theatre, dvd, xbox, xitel digital link for mp3s... Just quality 2.1 sound at a reasonable price, that's all I ask...