Yes it is possible finally. And the solutions ARE NOT from Nintendo (unfortunately). Of course if you wait you may see an N-built media solution, but until then these are great options.

First is the tutorial for streaming music to your Wii via iTunes. It looks pretty straight forward and requires the Opera browser (a free download for your Wii). You also need an application called MyTunesRSS.

But if you're like me you want more than just iTunes, you want it all. So today I came across this great application. It's called "Wii Media Center X" and as the name suggests it will allow your Wii to connect to a media center to watch movies (currently FLV only), view pictures, listen to MP3's and even browse files.

So there you go, a couple early media options for your Wii.