Sometimes its just fun to put together a quick little animation.
If u have any problems with ghosting effect in IE (marks left behind from the previous frame) you can go to View->Zoom and change it to 100% to fix it.
Yeh, I used the "Save for web&devices" its just right below "save as", than I think it should be default set to GIF, there is alot of options there to play with too, but I havnt done that yet.