The best camera is the one you have with you, so if you're not carrying it, it's no good to you.
Find a store where you can go in and hold the camera in your hands and see what fits your hands, how it feels against your face when you're shooting, and how heavy it is (weight ends up being a shock to some when they first pick up a DSLR, and glass only makes them heavier).
Start with Nikon and Canon, then branch out to other brands and decide what makes you happiest, and what you can get the most use out of. When you make a purchase, also consider some other things, such as a few extra memory cards, an extra battery, flash, a memory card reader, and a case (a good case).
As a side note, don't ask questions that you can answer with Google. Read your manual, and buy a guide book for your camera, and buy a book that's as basic digital photography guide (NatGeo makes a great one or six).
Welcome, and happy shooting!