Ive been a still photographer since the mid 80s. Plus I paint landscapes. I understand composition and exposure. I'm pretty good with Photoshop. I'm new to video. So far, I LIKE it. The reason I want to upload the video is to get some good constructive comments. Different shots to try, or approaches. Also tips on what to edit and how.
Lots of good advice, I would add; If your new to video, one thing I would strongly recommend is spend time on a site like Youtube or Vimeo what have you, and search the videos you want to produce.
Find the ones you like and ask yourself; "
What is it that I like - what makes this video enjoyable"
There will be videos that within 20 seconds you are thinking of turning it off; again ask yourself - "
What makes this video disagreeable"
Take notes and try to edit accordingly. You've probably already got a good eye but, editing for new producers is hard for the simple reason - that they are impressed with their video and include way too much of it in their videos. Less is more. Pay attention to the audio whether it is music, natural, VO or whatever, a great video has great audio.
When it comes to editors I would recommend learning the basics on a basic editor, keep it simple at first, you'll learn faster without steepening the learning curve by having to learn a complex editor at the same time. There are some free editors and plenty under 100 bucks. Whichever you choose pick one that will work with whatever footage you have. Most will work with all kinds some won't it depends on the cameras you use.
Finally, for uploading to site like Youtube and so on; find out what the optimum encoding settings for that site are and try to export at those settings. Granted, here is where a higher end editing suite will give you more control but like I said it can be a double edged sword.
Good luck.