Written by Ron Brinkman, click here to read the entire post. 5 minutes of your time you will thank me for suggesting you take. My favorite excerpt:
Use Apple’s tools to take you as far as they can – they’re an incredible bargain in terms of price-performance. But once you’re ready to move up to the next level, find yourself a software provider whose life-blood flows only as long as they keep their professional customers happy. It only makes sense.
Interestingly enough, there’s a link to LightWorks in the comments.
Free to try, and it’s good enough for cutting dozens of feature films, including The King’s Speech. Let’s see here, native every-format-you-want-support, native stereoscopic editing, a development roadmap…
proactively * …hrmmm, oh really… * peter
pro • active • ly 
Peter – thanks for this insightful review. I read the entire article, especially the many comments.