You have just posted in the best hobby-picking forum available!
All the information that you seek is contained within the topics of this forum. You just need a little nudge in the right direction.
Check out the FAQ's and General Information section. In there, you will find answers to questions that have been asked many times before.
To answer your questions pseudo-specifically:
Cheap tools - make them...search for pyro's video
Beginner locks - Master #3 or a Kwikset deadbolt are the suggested locks.
Tutorial sites, Hmmm - Howstuffworks.com, dp.penix.org/cl.htm, reading the MIT guide...
HTH without handing too much on a plate.
