only if you can find an image library code that can convert to GIF. Good luck finding one though, since the GIF algorithm is closed source and the liscence doesn’t come cheap.
b) render a scene object by object (abstracting or making the others invisible) so one can relayer them in another program (keep in mind here that the backround has to become transparent )
you can move objects from a layer to another with the Python API.
ob = Blender.Object.Get(name)
ob.Layer = 1<<10 #move object to layer 11
ob.Layer = 1<<1 #move object to layer 2
and where can i get more information on creating plug-ins for blender? and have them appear in the NavBar?
there’s no way to make them appear in the NavBar. For general plug-ins script discussion, you can refer to the Python and plugins forum and SirDude’s giant repository: http://mysite.iptic.com/virtualblender/Script/Script.html
hope that could help.