*don't bother with digital unless its a top dog DSLR
*get on an HND or something, pretty vital, you really do need to know your shit.....alot!
*you have to really commit to it, shoot loads.
*yeh theres loads of people doing it but most people are bollocks, if you're good enough you'll get work.
*submit stuff to mags
*its well hard making a living from sports photography unless you're a house photographer for a mag, which means you are one of the best in the country. Most people make a living from crap like weddings and portraits.
*its hard