Don't know much about the IBM. Both drives sell for $159 right now, but the IBM has 40 gigs more! Great for recording HDTV. That's at least 4+ hrs. extra of HD stored in the HTPC. The SB is known for being quiet. But my Tosh SDM1402B DVD ROM is so noisy that using the SB would be moot when considering keeping the dB down. So what do you think which would be best for my HTPC? How do you like the IBM? Thanks in advance! BTW: Can WinMe handle one 30GB HD and one 120GB HD simultaneously in the same PC?