I know that apple is likely holding an event on September 10, likely just a little over a week away. While the iPhone 5S and iPhone 5C are almost 100% certain, I want to know if I should sell my current 21.5 inch late 2012 iMac and my early 2013 15 inch Retina MacBook Pro. I know intel has new Haswell chips that the iMac and MacBook Pro do not have at this time. Will Apple update these Macs on September 10? I would like to buy the Haswell models soon after they come out. My iMac is the base $1299 model 21.5 inch My MacBook Pro is the 15 inch $2799 model They are all in great conditon, so how much could I get for them? I know no one knows for sure, but I want to know if I should sell them now, or if they are not coming out until October.