I have both cheep zooms. you will want the 70-300is (500ish)and not the sub $200 one... the IS makes a huge difference. the 55-250efs is plastic, but it is a surprisingly good performer (better than the 70-300). the 70-200L I have not used yet, but the 2.8L I have (in this case I'd rather have the 135L prime).