My trusty 3,1 is showing its age. I bought it new in 2009 with a commitment to hold on to it for 6 years. It's still a great machine, but business has been good, and it's time to upgrade to something a bit more responsive and powerful. I'm a graphic designer and illustrator. I'm not a gamer. I use my computer to make money and explore my hobbies. I do a lot of my work in Adobe CS6. Here's a rough breakdown of what I do professionally: Illustrator - 35% Photoshop - 35% Corel Painter 15% InDesign - 10% Other: 5% "Other" consists of some video, some basic 3D, and a desire/hope to add some animation work (or maybe just for fun). I'm hoping Apple brings out a newer model (7,1) in 2015, but if that doesn't happen by April, I may pull the trigger on a 6-core / 1TB / D300 model. I'll get the basic 12GB RAM and upgrade via third party to 32GB (2 x 16GB). I've considered an iMac, but I don't like the screen and there aren't enough connections for all my gear. Since I'm a graphic dude, I've included my plan in graphic form below. Please take a look and let me know if I'm forgetting something, or if you have some better ideas.