Hello! I want to emphasize that I'm a hobbyist so I do NOT need top tier specs. I recently got into making drone videos with my DJI Mavic. I'm new to Apple products, video making, and don't know much about computers+specs. I do plan to purchase an iMac 21" or 27". 1) Which model of 21" & 27" should I get to edit 4k footage w/ Final Cut Pro X? It would be great if you all could recommend me the spec (i5? i7?, processor, RAM, storage, graphics card, etc) for BOTH the 21" & 27" to do the job--still deciding on the size. I'm hoping to spend a max of ~$2000. Seems like Apple separates models by the processor; https://www.apple.com/shop/buy-mac/imac -21" (1.6 vs 2.8 vs 3.1 GHz) -27" (3.2 vs 3.3 GHz) 2) I've heard good things about Apple Refurb store, but have always felt that buying brand NEW is important when it comes to computers. Thoughts on getting a refurb iMac vs brand new? Thanks! I'd appreciate the help!