I'd just go with the i40. The pictures are relatively the same with both cameras. For the extra $100 for the i60, it's just not worth it. Basically the only difference is the viewing screen on the i60. For $100 more than the i60, you can have (2) i40's.
Here are some pictures from the i40 and i60. You won't be able to tell the difference other than the info strip.
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