well I'm the glad owner or a new 24 inch iMac today. sold my macbook to my buddy and bought this. now one thing i noticed with all macs at the apple store is that they are all really fast. one click on application on the dock and they bounce once and open right up. now is this due to processor speed or memory because i noticed that they all are running on 2 gig of memory((or at least the ones that i looked at))? i bought the base 24 inch with the 2.4 ghz processor. i have 1 gig of memory right now but would like to max it out. will this help in my search to have a fast computer like the ones in the apples tore? thank you in advance