Homebrew PCBs

Hi, I am new and this is my first post. I have a few beginner questions.

1. What is the best and easiest to learn, free PCB software to print 
with? I am going to use the Gootee method with laser printer and make 
simple beginner to intermediate 1 sided boards. Resistor, IC's, Diodes, 
etc...
2. What is the best size carbide drills for this? Ebay the best place to 
buy them?

Thanks,
Dave