Hi I'm in the mood to buy a Retina 15" so I've been reading a lot of reviews and playing with the machines in the local Apple store. Each time I use one I really like it and think it would work well for me but somethings just stop me pressing the button to purchase. I just wonder if the machine is ready for the retina tech yet. I was using Aperture full screen yesterday while in More Space display mode and I noticed the UI would sometimes slow down when shifting back from full screen to desktop. Moving open folder windows around the screen seemed like it wasn't as smooth as I've come to expect. I'm going to be using it to work with Lightroom and Photoshop for photography work (semi-pro) and then a Win 7 partition for gaming. I was thinking of the 2.7 16GB 512GB machine. I'd love to get the thoughts of owners of the machine to see what you think about the machine and the UI experiences. Thanks for reading.