I just got a 240GB SSD and a 750 GB HDD. I want to replace the 500GB Momentus XT that's in my 17" MBP now. I've got the drives and the hardware to replace the optical drive is on its way. My main question - just to see if anyone has some recommendations here - is which bay to put the SSD in... the regular hard drive bay under the palm rest? or in the optical bay? I'm assuming there will be no speed difference. Is that correct? Any thoughts on noise/vibration coming from the HDD and which bay would be best for that? Any other considerations? Also, I've searched and couldn't find anything yet... do anyone know if there's a way to see the contents of each drive when they are fused? Not wanting to manage, just observe.