Here is a collection of best Gimp photo plug-ins and special effects for the Gimp. These plug-ins are written in script-fu/tiny-fu to provide special FX effects, photo effects, color/text/logo effects. Also included visual SCJP tutorial & many more..
http://www.ziddu.com/download/7010958/gimp-fxeffects-0-1-12.zip.html