My current computer is a late 2008 15" MBP, but it's often strained when I try to get it to do much beyond web browsing. I'm a computer engineering student, so I need a pretty powerful machine, and my current computer isn't really cutting it. I was telling myself that I was going to upgrade to a 15" rMBP as soon as they announced new ones, but now that they've come, I'm not so sure. Do people think I should wait for Haswell, or do you think that the current Ivy Bridge models will be similar in performance to the high end Haswell chips?