In lieu of an iMac refresh, I'm considering going the Mac-mini route. Performance-wise, how close would a tricked-out Mac Mini with a Thunderbolt monitor compare to an iMac? I'm thinking MacMini Server to get the i7, and upgrade the drive to a less-expensive SSD than what Apple offers to keep the speed, but at a reduced price. I'm trying to find the downside of going this route, but not really seeing one, but then again, I've never owned an iMac. Can anyone with more iMac knowledge enlighten me to what trade-offs I'd be taking on by going this route?