Im selling my Xbox 360 and some games how much is it worth?

Btw im not selling it at gamestop or anything. So im selling my Xbox 360 Arcade w/ no hard drive, in perfect condition and the following games: Deadrising, Frontlines Fuel of War, Rainbow Six Vegas 1, Midnight Club LA, Fallout 3, Project Gotham Racing 3, FIFA Soccer 10, MLB 2K8, NCAA Football 08, NASCAR 08, Tony Hawk's Proving Grounds, Tony Hawk's Project 8, Guitar Hero 3, Guitar Hero Aerosmith, Assasins Creed 1, Assasins Creed 2, Grand Theft Auto 4, Halo 3 ODST, Ironman, Xbox Live Arcade Disc, And Sega Superstars Tennis. How Much would all this be worth?