I’m with Magiver on this.
If you are totally against mirrorless gear, go ahead and skip the rest of this post 
(and you might want to, as it appears that I wrote a book)
But I would suggest that you look at the mirrorless camera world to see if anything fits your style.
Like street photography? Go mirrorless
Like sports photography? DSLR is the only way
What you get in the mirrorless world:
Very compact; Silent; High ISO; Quality lenses; Lightweight; Unobtrusive; More likely to be with you
What you don’t get:
Full frame sensor; Lightning-fast autofocus; Thousands of bells and whistles; Fifty pounds of gear
Mirrorless cameras are great at day to day photography, portrait photography, and travel photography, and they excel in street photography; however, they are likely the wrong choice for sports photography–that is the realm of high end DSLRs with far better autofocus. They respectable pro cameras: I am an active member of a forum dedicated to Fuji gear, and most of the folks there are pros, doing weddings, event shoots, portrait shoots, product shots, and other professional work, using only their mirrorless cameras. Naturally, there is the obligatory “Has your Fuji camera totally replaced your DSLR gear” thread that goes on and on and on with debate.
My own kit is all Fujifilm gear, and I have a small bag that I carry all over the place that contains an XT1 body, 21mm, 50mm, and 85mm (equiv) lenses, an x100s body with its fixed 35mm lens, a stack of filters, extra batteries, two compact flashes, and some color balancing gear.
The x100 series cameras have an optical viewfinder which many people prefer, and a little lever that you can flip that slides a prism in place and switches optical for LCD.
Because of the inherent permanent “live view” mode, manual focus with these mirrorless cameras is an entirely different game: they provide either a digital split screen or focus peaking (where things in focus have edges highlighted with white or red pixels). It’s something that once you use it you wonder how you ever did without it.
The XT1 body doesn’t have an optical viewfinder, but they have one of the best electronic viewfinders in the business, with virtually no lag. They put all of the important controls on the outside of the camera with traditional knobs: there is even an ISO knob. That’s what sold me on the body. I liked the old-school manual controls.
The x100 series cameras have a leaf shutter that can handle flash sync up to 1/4000s, meaning you can pretty much shut off the noonday sun with it. The shutter is so quiet that you normally won’t hear it above any background noise; the camera comes with a faux shutter sound enabled, but many users turn that off for perfect stealth.
Fujifilm just released updated firmware in December for the XT1 body that added an electronic shutter (cool!) feature that can be toggled. This means that as long as your subject isn’t moving too quickly you can take silent photos, like an iPhone does. If you have fast horizontal movement you will may see sharp in-focus distortion, because the pixels are read line by line. If that happens, just turn on the mechanical shutter.
There are times when I pine for a full frame sensor, imagining the awesome bokeh I would be able to achieve, then I put that famed 56mm (85 eq) portrait lens on and take some beautiful photos and I stop thinking about DSLRs.
The reason why I mentioned that they perform poorly for sports photography is because that kind of work requires crisp instant autofocus. Many mirrorless cameras focus by hunting until max contrast is obtained: this obtains perfect focus, but usually takes a second. DSLRs use phase detection hardware that acts like the split prism of old and gives an instant reading of “how far out of focus” the camera is, so it can focus instantly. They have the edge when focusing on a subject that is approaching or receding (like a football player running toward you).
Some mirrorless cameras support your 35mm camera lens selection: Fuji makes adapters that work quite well for everything from Canon to Leica. You lose electronic features, but the camera works perfectly well in manual mode.