Well... I work for the fire dept., so I don't see myself leaving there to start a full-time business. Currently, I just want to learn how to design, cutter, and apply items. It's just something that has caught my interest, and looked like something fun to do, and learn.
Currently, I'm using SignBlazer... it isn't bad, but I have nothing to compare it to. It seems user friendly for a novice like myself.