The processing boost for Haswell won't be that big. You can't order both drives in an iMac, it's one or the other so a 3TB (Fusion option?) or a 768 GB SSD and my best guess is you probably won't see an option for both this year.I use a mid 2007 iMac. Now its time to upgrade. I am wondering if it makes sense to get the latest 27 inch with 3TB hdd and a 768gb SSD or wait for haswell and hope that it comes with a retina display?
cheers
A
And as for the Retina display, the iMac is almost Retina already. Also do you really want to pay the rice for that large of a Retina display.
It all boils down to, do you want an iMac now or in the October to December time frame?