I'm somewhere between $.09 - $.11/round ($4.50-$5.50/box of 50) depending on which bullets I buy.
Like others, I pick up my brass at the range.
You can get started with a press, dies, etc. (not counting the brass, primers, powder and bullets) for ~$150. That gets you a Lee Turret press, the dies for the .45, a little scoop for the powder, a cheap powder funnel and a book.
So, if I conservately say that I'm saving $5/box, it pays for itself in 30 boxes. For me, thats 10 trips to the range not counting IDPA or Falling plate shoots. Once it pays for itself (or you get the right birthday gifts), you can start looking at getting scales and auto loaders for the powder and fine tuning the "recipe" to figure out which loads work best with your .45. Etc. Etc. And still save money.