Have aging (and about to die) 2013 MacBook air with an I7. I decided to buy an iMac for the first time with clear plans to do video editing for Youtube blogs. I am about to buy the middle tier 27inch iMac tomorrow from PowerMac but also have an option to buy the I7 that is coming in soon. The price difference is 18K. I am price-conscious but I am worried that I might feel sorry for not investing in the higher model. If I plan to do final cut video editing, is the I5 3.3Ghz iMac good enough for 5 years of use? For info: I plan to buy the 512K storage since I have a Synology NAS. I also plan to upgrade to 30G RAM.