I'm looking to upgrade my current camera (Canon T3) to something that might help me further my photography. With the T3 I find that I am constantly bumping into it's lack of functionality which either causes me to miss a good opportunity or just makes it plain frustrating to do something outside of a simple shot. I know a new upgrade won't make me a better photographer but I feel that I've reached the limit of what the T3 can do it most cases.
Some of my current issues I have with the T3:
-Accidentally changing the mode I'm on just before I take a shot (there's no lock on the T3 mode dial)
-3 FPS and 3 frame buffer. Taking any more than 1 or 2 shots causes the camera to slow down and process. Makes it near impossible to get any good shots of anything moving.
-Low light performance. This is also dependent on my lenses since I don't have many fast lenses (Most are f/4-5.6) but I find I cannot use anything above 800 or the shots just have awful noise.
-T3 lacks many of the helpful shortcut buttons. Changing anything outside of shutter speed and aperture takes too long.
-Terribly slow autofocus and nearly useless autofocus outside of single point. I almost always just use the center point for autofocus since I just fight with it otherwise.
-Spot metering is almost useless at times. Often I see no real difference between shooting partial, center or evaluative. I know how the metering should work but it just doesn't seem to do much. Maybe I'm expecting too much out of it.
-Not weather sealed
I'm no expert yet but I think I know how to use the camera well enough and all of the listed features. It's (very) possible I am not doing something right. This is why I am looking for advice. I'm not looking for something to solve all these issues, just something to keep me going while I try practicing new types of shots.
Currently I mostly shoot Wildlife and Landscape (my 55-250mm is on my camera the most). I find I end up shooting in low light quite a bit but that may change in the future. I was initially looking into the Canon 70D but the recent announcement of the 7D mark II has peaked my interest. The 7D is apparently a great camera so I hope the 7D-2 will live up to that.
The problem is I don't know if I really need to spend the extra on the 7D-2. I was looking to take advantage of the preorder offer and get the 24-7 f/4L (I don't have any L lenses right now). At this point anything will be better and should help with at least a few of my frustrations (I'm not looking to fix everything).
Of course I'll consider other choices outside of the 70D and 7D-2 but those are my top. Any advice on this matter will help.