I know it's a generic topic but I wasn't sure how to put it. My iMac will be 3 years old Oct 19 2010 and it's running pretty slow. I do a lot of video editing and have 1GB of memory ( I think that's the RAM). I'm pretty sure that's not the right amount of RAM I should have for the things I'm doing but I could be wrong. I have about 5 apps open at once for recreational use and about 2 for video editing, those 2 being Final Cut Pro and iTunes. So would it be my low amount of RAM causing my computer to slow down or another reason?