Ok so I have had this mac, the 21.5 inch $1499.99 model, for about 3 weeks now, and from the day I got it until the last 4-5 days it has seemed a little slowed down or choppy. Like when I click my mouse to get out of sleep mode the rainbow circle comes up for like 5-10 seconds and then even scrolling down web pages it feels a little choppy. What is the cause for this? Also when I first got this I had snow leopard I think on it and it was super fast and 2 days after I got it I put on Lion and right after I got Lion it seemed to slow down, so could it be that Lion is making it progressively slower? I want the mac to be the way it was when I first used it, I got it because I knew how fast and sleek and smooth it was but it isn't acting like that now...