Here's an unusual one for you. Likely a dumb idea, but I'm curious. I want to get a 27" iMac, but I want dual display, even though they're 27" (yes, I'm greedy). The problem with using the Thunderbolt display along with the iMac, is that they don't look the same and aren't the same height. That's not the end of the world, as you can sit it on a stand or whatever. However, here's an idea that crossed my brain. I can get an older refurbished 27" iMac for around $100 - $200 more than a new Thunderbolt display. What do you think of linking two iMacs together? I watched a Youtube video (below) where a guy was using a second iMac, and he could use it as a standalone or as a secondary (extended) display for the first iMac. How to Connect Two 27" iMacs for a Dual Display Setup! - YouTube I was curious about this, because the height problem would go away, and I could potentially use the second one as a bootcamp machine or whatever, leaving the primary one free from "tampering". Here were my initial thoughts: PROS: second display that looks identical to primary could be used for bootcamp without having to screw with primary could be used as an independent workstation (multi tasking) could be used for integrated processing (e.g. video editing) additional hard drive space spare keyboard and mouse minimal extra cost (not much more than new display) CONS: more things to go wrong (whole iMac vs just a monitor) wasted processor if you just use it as a secondary display need adapter/mini display port connector can you hook a thunderbolt iMac to one without thunderbolt? do you lose all benefit by not connecting them via thunderbolt? I'm not sure about the whole thunderbolt situation. In the video, I'm assuming he's using two older (mini display port) iMacs. I'm not sure of the issues if you try to mix them. Would there be any added benefit/features/capabilities by connecting two thunderbolt iMacs? That's not quite as feasible, as they cost a lot more, and not many refurb ones, but I'm still curious. Anyone have any theories or even want to just comment on how stupid this sounds?