So far, I have some good news and some bad news...
The good news is that the Lenovo IDE-to-ZIF adapter seems to work great. It fits inside the Karma and leaves room for a hard drive (Probably either 5mm or 7mm) and the stock battery without modding the case. The ZIF end of the adapter fits easily into the Hitachi 60GB drive that comes with the adapter (of course), and after Dremeling off a little bit of the reinforcement backing, it fits into the Toshiba 120GB drive, too. When I boot into Recovery Mode, the Karma is able to ID both drives.
The bad news is that the 120GB drive doesn't work past that point. With the 60GB drive, I can run the firmware updater and format the drive, and the Karma shows up in Rio Music Manager (even in Recovery Mode). With the 120GB drive, though, the firmware updater fails when I try to apply the update. It lets me choose the Karma, and I click "Also format" and then Next, and it shows an empty progress bar and says, "Now updating," but then it says "The upgrade was unsuccessful. A device attached to the system is not functioning." Also, the Karma never shows up in Rio Music Manager, even when I have a tray icon saying the Karma is plugged in...
So I don't know if this drive is just bad, or maybe it's too big and it's confusing the Karma... Anybody have any ideas?
PS - I noticed that the Toshiba MK1231GAL (120GB) is quite a bit quieter than the Hitachi C4K60 (60GB).

This post was edited on 2009-01-12, 20:43 by
gomtuu.