Sure, take more if you'd like. Also, check the chests down in the mine. They're also full of cobblestones. I don't like having them go to waste, so i place chests all over the place when i mine:p Well, not /all/ over the place, i like to set up little workstations here and there.
I'd play the game more, as in, on "our" server, but every time i try lately, i get disconnected after a couple of minutes. And it happens /all/ the time...