More info for you, reviews of packages. If your computer & OS support 64-bit, I'd look for 64-bit version as it will be able to use the additional memory (if your computer has more than 4 GB RAM)
http://www.pcmag.com/category2/0,2806,4835,00.asp
This link has nice comparison table.
http://video-editing-software-review.toptenreviews.com/
http://www.pcmag.com/category2/0,2806,4835,00.asp
This link has nice comparison table.
http://video-editing-software-review.toptenreviews.com/