Regarding softmodding with the Homebrew Channel and BootMii...
First of all, there is always going to be the bricking risk but really the same risk applies every time you update with Nintendo firmware. As long as you read up and take your time, I think it is a very easy and rewarding process.
The current exploit for firmware 4.3 can be done from http://please.hackmii.com/ Kotaku had a quick guide for using it but I can't load their page atm... If you do find a guide make sure it's a simple one, there are quite a few that make you modify way too much. All you need is an app that launches disks from the Homebrew Channel that can force region free (Gecko OS).
Finally I recommend anyone with HBC to get the Homebrew Browser. It is a very easy app browser right on the Wii. Stuff like Shoutcast Radio Wii, Google Earth Wii, and DVD playback only sweeten the pot.
Oh but most importantly! by softmodding you are potentially opening yourself to a world of illegal pirating. I want MonolithSoft to prosper and create many games, therefore I gladly pay for their work. It's obvious that these guys truly care about this game from the music alone, we would be pissing in their face if we stole it.