I am planning my mac pro setup but don't have my machine yet to test anything out. I will most likely be running the 5770 GPU. Now I currently have a 20" iMac with a 20" Apple cinema display attached. They both are 1680x1050. I want to maintain a dual monitor setup, and keep the cinema display as a secondary monitor, so I am looking for a new primary display for the mac pro. I was looking at a 23" Acer full HD with 2 HDMI ports, but no DVI. Can I install a MiniDisplay Port to HDMI adapter to hook up the 23" Acer monitor via HDMI? If so, will it be at full 1920x1080 res? Also, another concern I have is if I have 2 displays with different resolutions will it look terrible? or even be that noticeable? Maybe I should sell the cinema display and get 2 of the same monitors? Or look for another used cinema display? What would you do?