Creating an animated GIF

Your task will be to create an animated GIF of a Red Siren light. I wish for it to look similar to this: [login to view URL] The animation will be of the light spinning around similar to, but of a more professional design to this: [login to view URL] I need the size of this to be 640 x 960 pixels. I will require 2 items. The first being the single animated GIF file. The second is a folder of each image that makes up the animated GIF (The frames). PSD file would be useful if applicable. Any questions please let me know. Thank you for your time.