Random slideshow

I have a site that uses randomly chosen animated GIFs, which were created in Adobe ImageReady: http://www.amgltd.biz/ (on the right hand side, under "Clients we work with"). There are five different animated GIFs with five or six slides (logos) in each; one GIF is chosen at random when the page loads.

Is there a way of creating a similar effect in CMSB? I'm guessing this is what I'd need to do:

1. Create a multi-record section of the cms where the client chooses a number of images/logos to upload.

2. Take the uploaded images/logos and display them as a fading slideshow.

3. Get the page to select one of the records created in #1, and display it on the page.

#1 is easy; how do I do the other parts?

Thanks!