My advice is to wait til applications for GS is open. There is no point to posting about wanting to be a GS until then, as it will be just ignored. The GMs have a process in which the GS applications are done and there will be post once its done.
Til then, just be patient, learn the game, learn the forums. The biggest thing about being a GS is knowing how to follow directions and find information. I would also suggest to talk to a few GSes and see what its really like to gain a perspective and understanding.
Enjoy and have fun.