I think I am pulling the trigger on the 13" cMBP, I did the two SDD via Optibay enclosure hack to my now ancient 13" 2009 and with the exception of the video card, it has totally ripped. The current cMBP with this same hack will be amazingly fast and I figure it will last me for at least a few years which at that point we should be in a totally different league in form factor and power.