So I have the last production model of the 2010 MacBook Pro's in the 13". Its been great, super fast, I love it even with the C2DUO. But recently I think I've been pushing it pretty hard and its getting slower really fast. I installed the newest OS X Lion and have been encoding video files of some pretty large sizes like I'm talking 10 gigabyte Mkv's in 1080p and raw Blue ray files I use handbrake. Anyways would upgrading to 8GB's of RAM help significantly? Thanks in advance...