HyperEngine- AV
When it comes to video editing, it's easy to find a host of free software that you can use for your needs. However, it's rare to find a software that has pretty much everything you need. HyperEngine- AV is a great example of a program that feature almost everything you require when it comes to video editing.
It's a well-rounded multimedia software that edits, arranges and processes audio, video and even text without requiring users to have a background in video editing or sound processing. The program is developed by Arboretum Systems and is offered absolutely free for the many Mac users out there. If you're not happy with your current video editing software, give this one a go. It might be the program you're looking for.