Need a new Mac

I need a new Mac, and I'd like to replace my dead machine by the end of the week.

So, basically, I've narrowed it down to the 11 inch Air with 8GB of RAM, and the 13 inch Retina Pro (13 inch Air has an ugly screen, 11 inch model is quite a bit nicer IMO). Yes, I know, one costs $400 more than the other. And I'm not so flush with cash that it doesn't make it difference, but I understand Retina is an investment.

And yes, I know Broadwell is coming in four months or so, I doubt it will make me kick myself for buying a machine now.