Oooook...so...I'm not very edumacated in lenses. I have a Canon 300D. I have the 18-55 kit lens, plus my very dear to my heart 50mm 1.8. I would like to get something (not a prime) that woudl be good for portraits and such. I have no idea what I should be looking at. I don't have a huge budget...I'll probably have to save fo ra while for anything I get anyway...so...what suggestions ya got for me?