I have no idea what Prpixel is talking about. The Touch interfaces with a USB drive. A USB RAID 1 configured HD is a still a USB drive. From an external point of view, the Touch has no idea if the HS is RAID 1 or not. You can always pull one of the drives out if there was some kind of issue, and then reinsert it to mirror the drive inside the case when you add more music.
Get yourself a LaCie 2 Big USB HD with 2 1TB drives configured as a mirror array and a Logitech Touch. I think that's all you need (plus your DAC).
Get yourself a LaCie 2 Big USB HD with 2 1TB drives configured as a mirror array and a Logitech Touch. I think that's all you need (plus your DAC).