From the Phantom FC40 platform, what camera makes a good upgrade beyond the FC40 camera itself? I am not a fan of the GoPro, but I know lots of folks are, and it is probably a very reasonable reference. (It may be that the GoPro fits this application better than any other in which it is used. There are lots of applications in which it way out of place.) But what other camera are out there that would make good choices? I am going to do my own window shopping, but what do you guys like?