Nothing really significant, cost wise, but a few dollars off here and there.
Wii Nunchuk = $21.49 http://www.amazon.ca/Nintendo-of-Canada-Nunchuck-Controller/dp/B000IMYKQ0/ref=sr_1_1/702-7244259-9639218?ie=UTF8&s=videogames&qid=1191964943&sr=1-1
Wii Remote = $38.49...