I have an OCZ Vertex in my MBP. Great performance, but has definitely gotten slower over time. The folks at OCZ have just released the non-beta 1.4 firmware release that has better garbage collection.

http://www.ocztechnologyforum.com/forum/showthread.php?t=634...

Informative. I wasn't aware of the fact that all of the processes would be started simultaneously, but in retrospect it makes sense.