Hello, I am ordering my new unit in the next couple of days and would like to ask some thoughts on the i3 vs. i5 vs. i7 options. The machine will be used almost exclusively for audio recording in the home studio I'm setting up running Logic Pro (with an Allen & Heath Zedr16 desk). I also do design work (Illustrator & Photoshop) but I imagine those wouldn't tax the system more than audio recording. I'm definitely getting going with the 27" as I'd like as much screen real estate as possible but the processor is up for debate and I'm a bit uninformed as to the performance of these options when recording. Also would like to be a bit future-proofed as well as this will be a pretty long-term investment. Thanks much for any info and help.