Think I might finally put a small (120 gig) SSD in my MBP since the small ones are so cheap and three years into this computer I still have 430 of 500 gigs free, so going any bigger than a 120/138 is a waste. I can get either of these for the same price: Samsung 840: http://www.microcenter.com/product/...ATA_60Gb-s_25_Internal_Solid_State_Drive_(SSD) Crucial M500: http://www.microcenter.com/product/...T120M500SSD1_with_Marvell_88SS9187_Controller Crucial's site guaranteed compatibility with the M500, not sure about the Samsung but I think it should work? I know I won't get 6.0 Gbps, but I just want to make sure it will be compatible, period. So, given the same price, which would you get? Both have write speeds of 130 MBps, but the Samsung slightly bests the Crucial in read speed (530 MBps vs. 500 MBps).