>I can order a copy of my drivers license and change the address to "1600 Pennsylvania Avenue, Washington, DC" and they'll ship it to me quick as can be.
some states (e.g. New Jersey) mark the new license as a duplicate copy, which causes increased scrutiny by police officers and other ID checkers. And most states do send something to the old address, if only a simple notice stating the change of address.
Likewise, USPS sends a notice to both addresses if you activate their mail forwarding service, so you can't forward somebody's mail to your address and reorder their license. (Unless they are on vacation...) All of that is mail fraud which is a federal offense and probably a felony.
That all gets you a license with somebody else's picture, so you need to be a very close match with them to be able to use it--LulzSec isn't dumping pictures of their targets yet, so that means for a lot of facebooking.
As for a brand new ID, I wouldn't say it's impossible to jump through all the hoops you have described in para 3, but you'd have to pick somebody that does not already have an ID in the state you are getting a license from, and somebody that you are sure will not be contactable as a result of all your shenanigans (i.e. missing without a death certificate), or your fake license is bound to be useful for only a short period until the IRS and credit agencies catch up with the real person and that victim files a report of identity theft, freezing/suspending it. The next time you get pulled over with that license, it's lights out. Additionally, you can't just walk out the door of a DMV with a new license, you have to wait for it to be shipped a real address and if your forgeries are detected before then, police may be waiting to see who picks it up. That risk probably serves as a sufficient deterrent, no?