Dolphin is the best Wii emulator for PC you can find. It also works for Gamecube, so you will be able to play the latest nintendo games on PC.
In addition, in most cases you'll enjoy better grapahics than in the real video console.
Yes, it's true, your computer is better than a Nintendo videoconsole in terms of hardware, so it can give you better graphics and performance. Amazing.
Enjoy Wii in HD thanks to Dolphin. You have to try it.
Although the first time you have to configure it and it can be a bit difficult due to the loads of options for modifying and customizing, once you have configured it to suit your needs, it's really good.
A new way to play Wii games, because your PC can handle all those Wii and gamecube games. Enjoy!