NEWB

What is the best way to set up the environment?

I have a few Dell Servers, like a rack full, that I was going to switch on and have them chug away. Is it better to do that and use the same config across all of them or use some of the Tower servers and put like 3 video cards in each of them?

I also have a bunch of TTbit (usb) miners that someone gave me. Are they even worth turning on?

Thanks from the newB!