OP what video creation tool are you using?
Adobe Premiere Pro for 90% of the editing EX: for the video, titles, popups and other small effects.
VERSION: CS6 or CC (CC is used for collaboration and outsourcing)
Adobe After Effects for the interview audio wave forms.
VERSION: CC because CS6 is not compatible with OS Mavericks (STUPID)
Adobe Audition for audio mastering
VERSION: CS6 no need to upgrade.
Having a good audio set up is more important than a video setup. If I'm not in my house, I'm probably on an iPhone 5 with a Zoom H4n digital audio recorder (R0de XLR lavalier mic). I use a Nikon D5200, but would buy a Canon next time (because it has a full sensor at the same price point as a Nikon). The lens is a Sigma with a wide angle (forgot what) and this is what makes it SEXY.... ready... a F stop of 1.4, this is the Shallow Depth of Field (SDOF) AKA blurry background.
HOPE THIS HELPS
let me know if there is any other question you have.
PS here is the work horse.... and yes Adobe is a RAM HUNGRY MOFO! when I render, I only have about 1Gig left. All this to be said, this set up should be able to make any kind of movie you can think of with a production level you can be proud of
