Photography has always been an interest to me although not personal pictures but i would love to take it a bit further but i need help hence why i am here. I would like to take action pictures of extreme sports of some of my hobbies for example: Snowboarding is my main hobby i really enjoy and skateboarding but at the same time videos of me perhaps doing these sports myself or even of other people but i need to be pointed in the right direction, i need information on the best camera's for what i want to do obviously just starting out i don't want the absolute best i can get but I do need a decent camera/camcorder. It would also be very appreciated if people could give me links to some websites that explain perhaps how? to take good photos/videos of the sports? basically i just need to know how i should go about with starting photography? or even just some tips please 
I have no particular budgit maybe to start with £400-500 like i say im not planning in making this a career just a hobby of a hobby.

I have no particular budgit maybe to start with £400-500 like i say im not planning in making this a career just a hobby of a hobby.