I know its obvious for still but for video? I am looking at the Sony HDR CX500 and the Canon Vixia HF S10. The Sony sensor is 6MP (4MP effective) and the Canon is 8.59MP (6MP) effective. Is the difference in 2MP that much more noticeable? I know in still cameras it really isnt. Both have about the same size sensor too, 1/2.88 for the Sony and 1/2.6 for the Canon, so thats pretty much even. Thoughts?