What dslr camera should I buy?

I took a photography cl this summer, unfortunately I was only able to use a point and shoot with good manual settings. looking at buying a dslr camera, and need a little help picking which one would be good for me. I know I want to shoot portraits with a short telephoto lens and I also like abstract photography, so I'd like macro lens. I really really like Canon, and would prefer to stay with that brand, and also stay under 800 dollars. Thanks!