You will need to setup gcc, devkitPro (both PPC and ARM), armips and python at the very minimum.
(http://webcache.googleusercontent.com/search?q=cache:aB5E7OEs4joJ:www.wiiubru.com/forum/forum/viewtopic.php?t=10+&cd=2&hl=en&ct=clnk&gl=us)
Also, still not knowing your OS is a problem - I really...