My very first mac, and I've been impressed, but I just noticed a weird thing going on in the top row of keys (Function Row). It seems like some of my keys are somewhat slanted to the left. F1-F5 are all relatively noticeable. The escape key also makes a slight creak when its pressed (i think it sometimes rubs against the aluminum case). I know this seems nitpicky, but I was wondering if others had a similar issue. $1600 is a lot to spend - I want it to be right.