Hello! I need opinions. I have about 5 days left in my 14 day return window for a 21.5" iMac. I love the machine, but I didn't spec it well enough for the programs I'm starting to use (Maya and Blender). I did get the i7 core and 512 SSD but only selected 16 gbs ram, and I'm running up to that almost all the time. I know I'll regret it down the road if I don't change that. My other problem is that while I love the smaller size of this it really is -sighs- too small. My options are 1) I could go to another 21.5" (i7, 512 Ssd, 32 ram) instead and look into dual monitoring to expand my screen real estate, but I've never done that and am not sure how much a second monitor will be. 2) For $100 more I could get a 27" (i7 core, 512 SSD, 8 GB ram) and then purchase and install more ram myself. (It's still upgradable in the 27" model, right?) I'd stick with just the single screen. If I go with #2 - can you give me an idea of what type of ram to buy and a rough idea of cost? I'm relatively clueless about the various types and want to make sure I get something compatible. Thanks for any help you can give!