Hello, does anyone know how many usage hours are too much for a Panasonic ag-hvx200?? I am looking at one right now that has a total of 800 usage hours, it comes with a 16gb p2 card, fish eye lens, 2 batteries, all accesories it came with, and a mic, all for $2350 is this a good buy? please help!! what is the life expectancy of the hvx? anyone have any ideas?? thanks so much!