Well OF COURSE what you want is a Canon 1D X or Nikon D4S. You also want the 24-70mm f/2.8 lenses and 70-200mm f/2.8 lenses. If you have unlimited wealth, then those flagship cameras are definitely your best choices!
On the other hand... if you have to pay for this out of your pocket and funds are limited, then we may have to go a bit lower in the price range.
So we're wondering... what might that price range be?
Here in the US, you can buy a "refurbished" DSLR which has the same warranty as a "new" DSLR and save a few pennies (ok, more than a "few" pennies.) The cameras are reconditioned by the manufacturers -- you aren't buying from a private seller where you have to worry if anything is missing and/or if everything actually works.
Some of the "pro" compact cameras can actually cost more than an entry level DSLR. While I have a few DSLR bodies, I also have a "pro" compact camera (advanced point & shoot) simply because there are some venues where bringing a DSLR is either impractical or simply not permitted (most concert venues won't allow any camera with a "removable lens", but would allow ANY compact camera regardless of lens or quality.)
I can speak to the differences in the Canon line, but not so much the Nikon line (I shoot Canon).
Canon's 1200D is the bottom of the entry range DSLR (we can still get the T3 aka "1100D" here in the US but I think it may be discontinued in Europe). The T6i aka 760D is the newest and high end of the "entry" range bodies and probably one of the best updates to the entry line in many years. This camera is noticeably better than its predecessors.
On the Canon side the 1*00D (1100D, 1200D) are the lowest price point bodies. The ***D bodies (760D, 750D, 700D, 650D, etc.) are the higher end of the entry-range. The **D bodes (70D, 60D, etc.) are the mid-level bodies (above all entry-range bodies.)
On the Nikon side, the D3*00 bodies are their lowest price point cameras. The D5*00 range are the higher end of the entry-range. The D7*00 are mid-level cameras.
A Canon 1200D or a Nikon D3300 are their most recent bodies at the low end of the entry range. These cameras will have the basics you need but not many extra features.