I got a MacBook Pro back in April, my first Mac. I love it so much. I'm really into video editing and HD video, but the problem is that my MBP is running out of harddrive space, and I'm longing for a bigger display and a better processor. (I have the 13" C2D). I'm going to pick up an iMac this Spring. But I wanted to know if I should stick to the Core i3 21.5, or spend more and go for the 27 inch.