What would you do. I just picked up a new Mac Pro because I plan on pushing beyond what my 27" iMac is going to be able to handle, but now I'm stuck in a pickle. Option #1) Sell 27" iMac for $1300-1500 and buy $1000 27" Cinema Display for Mac Pro Option #2) Keep 27" iMac and use IT as a display for the Mac Pro, giving me a back up computer if need be. I guess if I knew if the iMac can be used while still being used as a display that would help, so I could set it to render or encode then use the Mac Pro for work. Does anyone know if that's possible? Or does the iMac go to "sleep" when being used as just a display?