This depends on what kind of Xbox (Limited Edition or something), what games (and how many) and how many controllers.
400-900
you can trade in as much as you like.
Dual Shock 3 controllers can be purchased for less than full retail and run about $40-45 amazon also has a few bundled with games for the retail price of the controllers. OEM controllers are all the off brands that will work with the PS3 and are not the controller chosen by Sony for the PS3. Some are not wireless and others are not Bluetooth, but they are cheaper
£20
This depends on what kind of Xbox (Limited Edition or something), what games (and how many) and how many controllers.
If you go at EB games I reckon you will get around $200
$50 lucky to get even that
You might get $25-30 or less
about 15$$$
400-900
I don't think they buy PS1 anymore at gamestop
you bet it is. 100 for the wii. 20$ per game, and 5$ for each pair of controllers and nunchucks. so the total should be roughly 200$
$25-30
About 70 Dollars
you can trade in as much as you like.
here are ranges of prices of what you have just the console-$150 console with controllers-$180 console with md controllers-$220 console with 1-3 games-$175 console with 1-3 games and controllers-$210 all of these prices are with the cables