Lighting is probably the most important out of anything. You can have a bad quality camera but you have to have at least some good lighting to make the picture perfect.
I do not use lighting for my pictures. I have not had time to buy any but I will be buying them this week. I use the outside light aka the sky as my light. Where I am the light is amazing at 8am in the morning every day. There is a sunset also. That is how I take my pictures.