Dare I suggest, that you would be better served with a compact camera, rather than a DSLR.
Something like the Canon Powershot G12 or whatever that is similar. I haven`t looked at reviews or specs.
here is Gordon`s review, see verdict for other camera options.
Ultimately making videos with a DSLR is a bit tricky, too easy to get things out of focus, they don`t do that all that well. Uses a lot of memory and then there is processing the video. I would suggest that a video camera maybe more suitable then a DSLR.
The big difference between a DSLR and Compact type camera is depth of field. If big aperture and isolating the subject is important then go DSLR.
Yes DSLR strength is low light ability, faster and better focusing system and obviously the bigger and better lens, but its also easier to take photos that aren`t in focus, due to the small depth of field.
And if you are going down that path you ultimately need to be prepared for a reasonable learning curve, possibly a number of lenses that you need to carry and definitely more $$.
Considering the condition out there as commercial fisherman and then carrying stuff around when hunting, I think that you may be better served by a good compact type camera for your videos and photos.