It was a tough choice deciding on which model to get because the Retina Macbook Pro is non-upgradable. The hardest part of my decision was if the 256GB hard drive was enough. I didn't want to pay $600 more for the higher model for more space. I had gone through the paces on deciding if 8GB of RAM is enough for me, and it is. I was at the Apple Store yesterday and I unplugged a 2.3 and a 2.6 to see what the idle battery life is like. Of course the 2.3 had better battery life at 100% charge. But, what I noticed was the big difference in heat between the two while idling. You could feel how warm the palm rests were on the 2.6 while the 2.3 was nearly cool to the touch. I would say the entire top plate on the 2.6 was "warm" to the touch. So when I get my 2.3 I'll throw all my apps on there and create a 60GB Bootcamp Partition and see if the capacity is enough. I realize I could get an external drive but to be honest it's one more device to carry and it'll take up one of the 2 precious USB ports. I'd rather put in the $600 and get the higher model, carry less hardware on the road and still have 2 USB ports for use if this one doesn't suit my needs. Also, I was quoted July 20-26 for delivery but I heard Apple is generous with their delivery estimates. I live in Toronto and would love to get it sooner. I just can't keep going to the Apple Store everyday to see if they have any in stock. Does anybody know how they're delivery estimates are?