Video editing software for 5D Mark II

I just received my 5D Mark II and I'm wondering what software do you guys recommend for editing movieclips from 5D Mark II?

Hi, my recommendation is Apple iMovie to get started, and Final Cut Express (or even Final Cut Pro) if you need more features and freedom. Also depends on your ambitions. For cutting family movieclips and adding some music I have found iMove quite sufficient.

Sony Vegas is a great program.