I've used Picasa to create Slideshow videos but I've found it a bit limited. Great for quickly knocking something up but beyond that it can only do simple transitions. There is really only one timeline to play with.
AVS Video editor is quite easy to use and seems quite powerful to an amateur like me. It's not fee but there is a demo version available. $59 buys their whole suite of applications.
I have several blogs which I keep up sporadically.
Videography
Android
.Net
I write my blogs mostly for my own benefit but happy to share my experiences with anyone else who would find them useful.