You need in our budget to include lighting and audio... If the audio sucks in the first few seconds i move on to the next video..
Whatever camera you get learn to properly expose and focus. Don't rely on auto. Make sure it has an audio input for mics.
Editor - doesn't matter, it's how you use the tool. If I give you a 50K Avid setup it won't make the story any better. learn the tool and how to story tell.