I use Pinnacle Studio 14, I like it. Easy to use for me, I tried others but my dumbass couldn't figure them out very well. I think I paid like 50-60 for it but it comes with some cool graphics and you can upgrade to more if you want. Here is a desert video I made. Sorry no good fish videos yet.
http://www.youtube.com/watch?v=uBpdE868vEU