Using Photoshop, Aperture ... anyone has 2 iMacs with both an i5 and i7? and noted of the differences in performances? between the 2? Will increase memory be better or i7 Upgrade which cost about $200+. Probably will get the base 4gb memory and order the 16gb upgrade from OWC and do it myself. Is the 2TB still noisy orshould I get the 1tb and less noisy with the 256gb SSD + 1TB? Just a final thought before I order this week. i7 or i5? 1tb or 2TB [noisy]