Hi all! I am interested in a new imac but I want to know what's the best way to configure it so that I minimize beach balls. Currently I own an early 2011 (I think?) MBP with 8gb of ram. It gives me plenty of beach balls I can barely work iMovie and iPhoto. I'm a teacher I do basic stuff but even then I get beach balls constantly. What imac specs do you all recommend? Thank you!