Ok I know there are usb and firewire interfaces.
What are digital track recorders?
And do they get better sound then interfaces?
Why would you need headphones?
And what are monitors for?
I was thinking of somethink like this:


And will this sound like studio quality?
And can you plug the digital track recorder into a computer.
Oh and I only have 2 guitar players and i am the bassist so is their any computer software where i can create drum beats?