iMovie is honestly very good for a free program (well, included with your Mac OS). I used it for a good while. I eventually did upgrade to Final Cut Pro X, and it does allow for more precise editing and has more bells and whistles. But I would definitely suggest at least taking a look at iMovie if you haven't.

I find it (and FCPX which has a very similar interface) quite intuitive, as is often the case with Mac products. But I'm not sure how it plays for someone coming from a good PC software. I got my first Mac in 2007. The last time I vidded on a PC, I was using Windows Movie Maker and running Windows XP LOL.