I have been monitoring my computer uses through activity monitor, and have been noticing that when doing really intensive processes (editting pictures, and export, etc.) my processor uses show to be more than 100%/. For example when using Lightroom, I noticed that it jumped to about 150% of processor use. Memory has never been "maxed out" so to speak and there has always been some room left (I have 4GB current). So would this mean I should look into a better processor? Thnx guys.