I have been in photography for 2 years and I have decided to go PRO. I am working on to get $7K to finance my equipment. I already have a great assortment of lens. I thinking of purchasing a Canon EOS 1D Mark III and prime telephoto lens i.e 300mm F4L, because living in TX you have access to alot of Sporting events, where I live have alot of schools and I could get paid to take pictures for various school events...which should be a good idea to help pay for my equipment also I am in into Landscapes photography,I do quite a bit of travelling too. Would this be great venture for a 23yr who has little experience in photography. What equipment should I get if I decided to go pro with the metion of the 2 itmes listed earlier?