So I just bought my first mac, I went with the new 2.53 with the educational discount. Should I have bought the 2.8 model? When I opened up my computer it had a dead pixel so I took it to the apple store and they said they would give me a new one when it came in at the end of the week. Can I returned the new one because it is unopened? I am not sure what I am going to do with the computer, I might play games I might do so illustrator and photoshop. I really want a computer that is going to last about 5 years. One question I do have is with the hard drive. I was planning on upgrading to a SSD but then I found out that apple had lowered the SATA speed to 1.5. Is the speed the same on the 2.8 or is it faster?