I'm becoming a Mac user, soon. Buying my first one. I am a digital artist, so I spend all day with a Wacom and Photoshop and do some basic video editing. I currently have a 27" Dell UltraSharp 2500x1500 resolution. Some friends are telling me to buy a 27" iMac and some are telling me to buy a Macbook Pro (and plug it into the Dell). The advantage to the iMac is that I will end up with two 27" screens (the Dell plugged into the Mac), which is great. My desk, where I spend most of my time, will be neat and tidy. The advantage of the Macbook Pro (Retina, I presume) is that, during the day, it can be plugged into the Dell, and be mobile all other times. However, I might need an external keyboard and mouse (because it's easier than the laptop). I don't quite know the technical spec differences between the two (assuming I buy the 2012 i7 iMac, or the Retina Macbook Pro). What would you do? Which direction would you go with this decision? I guess there is no right answer, but I'd like some opinions.