I hate to be that guy, but there are so many threads on this forum that cover all the questions you are asking (nufinish, case lube, tumbling etc etc etc). Just start searching the forum, read the threads and decide what makes sense to you. Then start reloading a bunch of ammo and, like anything, examine your process and see where you can improve it. You're just not going to know the best process for YOU until you start cranking the handle.