Hi I want to buy a 27" monitor for my Mac Pro and I have to decide between ACD 27" and Dell U2711. I have a preference for the Dell monitor for the price (half the price of ACD). What I want to understand is the true quality of the Dell monitor. I' ve used a 27" iMac for 4 months and i really love the display apart from the yellow tint problems! So, having loved the iMac display(glossy), I find myself well with the Dell? the impression of extreme definition that you have with the iMac remains with the Dell despite the matte finish? Thanks a lot!