Hello everyone, a quick buying question here... I currently own a 27" iMac with a 3.2 ghz i3, and I was considering getting a 27" display port display for it but I'm having trouble buying it knowing that it's outdated tech now with thunderbolt out. So I was considering selling the imac and buying a refurb Mini with a 2.5 ghz i5 along with a 27" thunderbolt display, then I'll buy another 27" in the future. My main question is whether or not the 2.5 i5 is a huge downgrade (or upgrade?) from my current 3.2 i7. I will be using the computer for software development in both OSX and windows. Thanks!