I've got just about a 1 year old ocz vertex 2 in my late 2007 Macbook Pro. I've only got SATA I so I know my speeds will be limited, but my ssd was still pretty fast when I first got it. Since I installed Lion in august, it has become extremely slow, as if something it majorly wrong. I have my original magnetic drive in the optical bay, and that is where I keep most of my stuff, the vertex 2 is only for the OS and my apps, and is only 20GB used out of its 60. I am using encryption on this drive, is that the problem? Here are my xbench results, the first is from when I first got the drive in April 11, then when I installed Lion in August, and then today.