Gamestop trade in? *10 points for most detailed/best answer!*?

I have a 46.90 store credit card, and I wanna get the $300.00 xbox360. If I trade in a used wii, with guitar hero 3 and world tour, and rockband 1 and wii music 2 controllers 2 nunchucks and medal of honor how much in store credit will I have? (estimates) pls tell meGamestop trade in? *10 points for most detailed/best answer!*?
Here is what you can reasonably expect to receive:



Wii system: $110

Guitar Hero 3: $8

Guitar Hero World Tour: $13

Rockband 1: $6

Wii Music: $12

2 Wiimotes: $28 ($14 each)

2 Nunchucks: $13 ($6.50 each)

Medal of Honor: $5



Total: $195



That being said, Gamestop is running several different promotions right now which will probably get you even more value for your trade including An XBox 360 Trade Up Offer where if you trade any system toward a new Xbox 360 Pro or Elite you get 30% extra on all trades. This could result in an extra $60 or so for you but you should check out all of their offers before you decide which one is best for your situation.



Lastly, I would recommend considering ebay if you want to maximize your earnings. Some of the items you have will fetch far more on ebay than what Gamestop is offering. Hope this helps!