If you're new to photography and already have plans to buy your first DSLR camera, I have one very important piece of advice for you - Don't overthink things.
I've been in your spot. You're sure about purchasing your very first DSLR camera so you start doing some research. You find out that there are dozens of cameras manufacturers with dozens of different options to choose from. You get confused and start diving in to the details. You compare specs, prices, reviews, but you still don't know which camera to get.
Research about camera equipment is good, but too much research can be bad. It's easy to forget why we're purchasing the camera in the first place. We forget that it's great photos we're after.
My camera recommendation
I highly recommend starting out with a basic DSLR and kit lens before making any large upgrades. The introduction period is very important because it will allow you to experiment and figure out what you really want to do with your photography. Using an entry level camera is more than enough for this. In fact, many of you will never have to upgrade from an entry-level DSLR.
Once you've found what type of photography you want to pursue, you can then make the appropriate equipment purchases that are geared towards that specific genre or path.
If you're buying new, these are the latest and greatest entry-level cameras from Canon and Nikon.
If you're buying a used camera, any will do. I still own and use an older Canon EOS Rebel T3i today! Whatever you can get your hands on will be more then enough for learning and creating good images.
A second lens I'd encourage you to add to your kit is the 50mm f/1.8 prime lens.
You might be wondering why I only recommend a DSLR, kit lens and 50mm lens when you're first starting off. The reason for that is because I think that these three tools are the only thing you need in the beginning. There is so much that you can learn from using just these simple pieces of gear!
The kit lens will teach you what focal lengths you like to shoot. With an equivalent focal range of around 17-83mm, you're pretty much covered from the wide end to the telephoto end. It will also let you know if you like working with zooms, and if you need faster apertures for the type of shooting that you like to do.
The 50mm f/1.8 lens will teach you how to shoot with a prime lens. Limiting your self to one focal length will teach you to see the world in a different and unique way. It will also teach you how to look for "that shot", and bring out the creative and problem solving side in you. The 50mm will also teach you how to use shallow depth of field to your advantage. Having the f/1.8 aperture is huge when shooting in low light and when trying to isolate your subject.