I have a Mid 2010 MBP so I understand the Intel 320 series is best for me (SATA 3GB/s). Amazon lists it at $199.99 for the 120GB SSD. If I had a newer MBP, I could get a SATA 6GB/s SSD, 128GB for $109.99. Am I looking in the wrong place or what? I appreciate any help.