In choosing the location of SSD and HDD, what about the issue of speed. Both SATA controllers in my 2009 MBP 17 unibody are SATAII, but my MCE optibay says speed of 1.5 (meaning SATAI). Is the connection then overall 1.5 rather than the 3.0 capable by the controller; and if so, do I sacrifice speed of the system by having my SSD with the OS in the optibay rather than the HDD bay? I run an OCZ vertex and have a WD 1TB in the HDD bay, but may forgo the SFS protection if it means quicker speed (and the ability to hibernate). This would mean squeezing the 12.5 HDD into the optibay too