I've been reading a lot lately about SSDs and would like to install one into my aging 2009 MBP that is now showing signs of HDD fatigue. There's a few recent threads on here on the process of installing and moving data but so far none of them have addressed the question on what to do with TRIM. My computer is now freezing up occasionally due to the current Seagate hybrid drive getting ready to give up the ghost. So, I'm getting rather tired of changing drives every ~2 years and am interested in installing an SSD for performance and hopefully some better longevity. I use the computer for a LOT of photo and video editing, beyond that it's just web and normal stuff. I'm ready to run out and pick up the affordable PNY CS1111 480gb SSD from our local best buy for 169.99 and start the install process but I keep hesitating because of the whole question around TRIM. I'll run Yosemite so enabling TRIM via the Kext hack is out. I've read on some sites that TRIM is no longer available but then I'll read somewhere else that it's absolutely necessary for the longevity of the SSD and to maintain performance. So which is it? Are there other approaches to TRIM other than Kext hacking? Thanks for any insight.