i dont know how helpful this is but i would suggest since you havent actually started yet, getting a cheaper camera first. i know that it sounds good to say that you can make it a career but how do you know it is for you? most ppl buy cameras bc they like the idea of it but after using the camera for 2 weeks, its put away to collect dust and never use it again. I would suggest buying a used xt or xti if you wanna stick to canon. that way if you do really like it, and saved up enough then you can buy a better body and use the xti as your secondary or something
i just dont want you spending all this money for something you're not sure you'd wanna do since you havent tried it yet then 2 months down the line, you sell it off for half of what you paid. it wouldnt be smart
just my two cents...