In reply to jethro kiernan:
The "prosumer" options are Premier Pro and Final Cut Pro.
Haven't used Premier, but have fiddled around with FCP. Not the easiest (a'la iMovie), but certainly not rocket science.
Both are spendy though, but Adobe offers cheper Premier somethign options.
That said, I know switched to using Davince Resolve 14, which happens to be free for non commercial use (heck, might even be free for that, didn't go through the rules that deeply).
This would be my suggestion. Resolve that is.