Newbie

Like the title says I'm new to the whole minecraft thing...

I was just wondering what things i need to get me started like....

1st: where do I go for a newest version of the game
2nd: once i get the whole thing installed and up and running, how can a join other players...
and lastly instead of me just chopping down everything for materials how can i just spawn them...

I've been on youtube and see how you are able to show your creativity and I want to give it a shot
Thanks for any help in advance...