I actually downloaded lightworks and tried it out.I've just started and have been using Movie Maker. It does the job for me as my computer will only just handle it. But I have previously dabbled with Lightworks, which is a free program, bit tricky to use but has waaay more features and is more powerful.
If I were you go for Lightworks or Sony Vegas. That's my plan when I upgrade my 10 year old PC