Replying to Editing program

Yellow!

I just got my gopro helmet hero hd in the mail and am stoked to start using it this winter. I was thinking about editing programs to get, and would benifit from some assistance. What would be a decent program to have for just throwing clips together, making edits-AKA doesn't need to be super professional or anything. I also don't really want to torrent one so what would you suggest for like 50-100 dollars that I could buy. I have windows 7 so pc compatable. I was thinking powerdirector 8, any experience with this? Thanks!