At this point it's probably best to start moving some of the heavy lifting over to the GAF homebrew thread.
Here's the thread.
To sincerely answer your question, though, in the mean time:
- First, you need a way to run Homebrew on your Wii. To do this, you will install a program called "
Homebrew Channel". This is a base of operations from which you can launch any other Homebrew.
- To install this, you need a game to trigger an exploit. On a 4.3 US Wii this is Lego Indiana Jones, Super Smash Bros Brawl, or some dumb Yugioh game. Instructions on how to trigger the install
vary depending on which game you choose, and you will find your answer in that thread.
- Once you've installed Homebrew Channel, you install
Gecko OS and use it to launch region free games. You can either manually install Gecko OS, or install a program called
Homebrew Browser which is basically like a Wii Shop Channel for homebrew. If you're not planning on trying random homebrew, probably just install Gecko OS.
- You're done. Some PAL games require you to set a simple "Force NTSC Video" switch in the program itself. This takes a fraction of a second.
So in total you download:
- Homebrew Channel
- An exploit for the appropriate game to install Homebrew Channel
- Gecko OS.
Loading off a hard drive requires one additional step (installing a custom "driver"--this is not the actual term used but just to explain it to you as someone who has never used Homebrew before, it's basically a driver--to allow mounting USB storage) but it is pretty much just as simple and <10 minutes extra work.
For any further discussion on how to make Homebrew work, move it to the Homebrew thread. I suspect that in a few months when the EU release comes out someone will start a thread with specific, running out-of-region only, instructions.