I have a 3,06GHz 24" imac which I love. What I really don't understand is why my mac is able to run 3d games at 120fps but itunes lags when scrolling a couple of hundreds songs, or opening a dock folder becomes deadly slow with just a dozen files in it, or again firefox and safari become unresponsive with very long pages (maybe with flash). The other day I was playing with itunes on windows and I was surpriced to see that it was more responsive than the mac counterpart. What is happing? Will the snow leopard help overall performance? Please note that I am complaining about mac performance, I will never let a win machine enter my home/office again I'm just wondering why the finder and generally common UI tasks are sometimes slower than linux or windows.