As I am sure you are all aware RAM prices are way down. Since 16MB is just $100 nowadays I was thinking of just buying it. Now with my 11' 17" MBP, I currently have 4GB of ram and 7200RPM HD and its very fast with SL. I know some folks recommend SSD drives but the install would be a little more involved and I could care less about boot up times as I usually leave my MBP in sleepmode most of the time and when I do restart my MBP I am shocked at how quickly it reboots makes my desktop PC seem like a Model T. Basically I am more than satisfied with the performance but it's always fun to hotrod a bit. As long as there is no downside I would be inclined to do it.