There are quite a few gimp sites that will offer the services you're looking for (*ponders* I wonder if that statement could possibly be misinterpreted...)
http://www.foxproject.org/~mike/gimp/
http://www.cooltext.com/
http://www.flamingtext.com/
http://www.foxproject.org/~mike/gimp/
http://www.cooltext.com/
http://www.flamingtext.com/