Try Windows Movie Maker or
One True Media, their easy to manage free program has cool features that include drag and drop capability, upload images, add text, music, effects, background and transitions.
If your looking for something more advanced but still user friendly then try
Animoto,
Roxio Creator 2009 or
Wondershare Photo Story Platinum they have everything you need in making your own slide show (video): some of the features included enable you to add your own images, videos, mp3 music, effects, captions, transitions and more making your video unique to you. Everything is laid out in an easy to follow step by step instruction.
Some of the programs allow you to export easily to youtube with just one click of the button.
Check out these videos (slide show) I made
Animoto Video and
One True Media Video
I hope that I was of some help and answered your question.