Need help selecting a new Mac for work. I currently use a Mac Pro 1,1 with 2.66 Dual-Core Intel Xeons, 8GB of memory and 3 hard drives totaling 2TB but with only 500GB being used. I am forever in Photoshop, Illustrator, Acrobat, Pages, Mail, iTunes - these are open all the time - and I often use lightroom as well. I am actually OK with the speed of this computer most of the time, but I would like to use Mountain Lion and other future OS updates and I have a concern that the machine 'could' start coming to the end of it's life given that it's nearly 6 years old and has only been turned off around 10 times in that time. So I am going to purchase a new Mac in the next 2 weeks! However I am not that technical, so the various specifications don't help me decide. I have a screen, so the Mac Mini looks tempting - but I worry going from something so big to something so small must surely have drawbacks? The iMac irritates me a little in the fact it pretends to be thin but really saves no space at all - though if it was the best machine for me and my work I'd get it. The MacPro just seems too expensive and big for what I need. I am only basing this from the fact that my current setup is OK speed / performance wise. My screen is an older silver Cinema Display - also around 5 years old. I like it. Unsure if the new ones are worthy of an upgrade in itself or if that could be reason for an iMac. Would anyone more knowledgeable than I have any preference or advice?