Buy the cheapest DSLR you can get with a kit lens, 18-55. Learn it, shoot as much as possible and just keep shooting. If you could find an older rebel like t2i to t4i for cheap I would get that instead of any of the newer ones.
Once you feel you have out grown the lens pick up a new one higher end, whatever suites your needs. Build up your lens collection with high end equipment, this is better than buying newer camera bodies, when you feel your camera body isn't enough then spend the funds on a new one.
Camera technology doesn't advance that quickly so putting money into your lenses is most important.