Slideshow

I want to make a wonderful slideshow for one occasion. i don't know which program is the best for it. i just know how to use powerpoint, but my knowlege of using it is not really good. moreover, using powerpoint, i have to get LCD to show it to everyone. that is another issue. i just want something simple, and it easy to show to everybody.

do you have any ideas of it? please recommand me.

thanks