From Ebay user, I can tell you this, you better do it this year if you want to sell it.
Considering that there are a very low supply of Wii, a brand new Wii will go at least $100 over retail price. Since it is used, you will get around $50 over retail price.
Next year, Nintendo claim that they will have more Wiis available and they won't be a problem finding one in the store.
As for all the games you have and accessories, I am not sure.
If it was me, I might also put in a reserve price just to make sure it will not go ridiculously low price. If it doesn't sell, I put it up again. I am sure someone will end up buying it for the price I ask for.
Anyway, Good luck.