Hello, I'm currently using a 120gb Samsung 840 as my boot drive, via an external USB 3.0 until my torx screwdrivers arrive.,. When I first installed OS X and my apps onto the SSD. It was absolutely lightning quick but after a few days of settiing it uop the speed has decreased slightly, I expect this is normal as I start using it more/filling up my apps etc.. But I have not enabled TRIM yet, I've read that samsung SSD's should use TRIM, is this true? Will this affect the speeds of my app loading/responsiveness etc? Is there anything else I can do to keep my SSD as fast as possible?