Price point help

I'm gonna sell my Xbox and things to put towards my first rig.

xbox slim (2010) 250 gb- mint cndt

halo 4, ac3, borderlands 2, and bf3- all in mint cndt

dpad shifting new xbox360 controller, haloreach controller- some scratches and other

stock wired headset

looking to sell for 400

where should I sell it? Any price point thoughts? Need the money, I wanna be a pc gamer so bad.

No one is going to pay $400 but try on here in the buy/sell/trade tab and see what you can get :)