Wii trade in price

hey guys, what do you think I would get for trading in the following at Game or Gamestation? I got 275 approx at Cex for trade value.

Boxed Wii with wii sports, remote and nunchuck etc

Unboxed Wii remote and Nunchuck

Mario Galaxy

BW2

Zack and Wiki

MOH heroes 2

Mario strikers charged

I have no idea. Go investigate a bunch of nearby (read: within 15 miles) Gamestops and similar stores, and take the highest offer they make.