Hello MacRumors, Okay I have been searching for quite some time using MRoogle but I can't seem to find my answers to this following questions regarding MCE Optibay. 1. Does 7200 rpm Drive that I am going to put inside the Optibay, is going to decrease my overall battery life? Most reviews (Macworld, MCE) said that it is not going to affect my battery performance at all, I am more interested in knowing what you guys' experience regarding this matter? 2. Do you guys recommend installing Windows 7 on the Optibay HDD? From what I read, The optical drive is using the SATA II Connector whereas the primary HDD drive utilize SATA III Connector. Will this make the SATA II Connector decrease its life? 3. Do I need to know everything else regarding the installation of the Optibay? Should I be worried to turn off the sudden motion sensor to off? Excuse my english. I am a full time student from Asia. Any help would be greatly appreciated Thanks MacRumors.