There's about a $300 difference between the two, so I'm wondering if the 70-300VR is worth the extra cost. I would be using it mostly for nature and animals -- birds in flight, animals at the zoo, squirrels/birds up in a tree, etc. I'm inclined to go for the 55-200VR, but I wanted to get some opinions first. Edit 2: I'm also looking at the 18-135 lens. Additionally, Amazon has the 18-200VR for 12 months no interest... so even though it is more pricey, it is an option.