For Wii, if your monitor has a component/composite/s-video inputs, you can buy the respective cable.
If not you have to buy an external vga box such as 1. xcm 1080p 2. x2vga
xcm1080 even come with a 3-to-1 component cable for Xbox360, PS3, and Wii.
(http://www.xcm.cc/xcm_1080p_vga_box.htm)







