I am also studying "Consumerism" and the related texts we have been given are; a Michael Leunig cartoon called "Scenes From The General Situation" and an ABC TV Forum thing called "Aftershocks"
Im not sure how long it should be but once uve talked about consumerism, bruce dawe and ur texts im assuming it would be around 5 pages or more. U should relate the texts to both consumerism and dawe
Hope this helps!!!