how to make an animated gif in gimp   (link)

http://www.gimp.org/tutorials/Simple_Animations/
http://www.google.com/search?hl=en&q=gimp+%22animated+gif%22
the bit of info that it always takes me a while to find/remember is that to make one that has different delays on each frame, you need to append ' (1000ms)' to the layer name.