I have a 17" Mid-2009 MBP that I got for Christmas in 2009. Over the last few weeks I've noticed that something seems to be bogging it down. I don't know if there's something wrong with the processor or if it simply needs more RAM (or if the current RAM is going bad?). Using Safari right now with a few other apps open (like Mail and iCal) the fans are going at about 4000 RPM when they should be near 2000. When I use Minecraft the fans spike to 6000 RPM and I am literally not able to use any other app without the app slowing down immensely. Even then, I only get about 20 FPS in Minecraft. What are my options for getting some speed back? Would installing a fresh copy of Lion help at all? Would a RAM upgrade to 8GB help at all? Or would the bottleneck be with the CPU? Any suggestions would be appreciated.