I have an Xbox 360 and 36 games, any estimates on how much money I could get for everything?

I have an Xbox 360 with a 120gig HDD and a memory unit, as well as four controllers and four play and charge kits. I also have $150 worth of download-able purchased content including Halo and GTA San Andreas on the Hard Drive. I have 2 other Xbox original games, Conker Live & Reloaded and Halo 2 and 32 Xbox 360 games, Xbox Live Arcade Compilation Disc, Just Cause, Gears of War 1 & 2, Halo 3, Tony Hawk's Project 8 and Proving Ground, Skate 1 & 2, MX vs ATV Untamed, Marvel Ultimate Alliance, Forza 2, Need For Speed Carbon and Pro Street, Call of Duty 2, 3 & 4, ins Creed, Guitar Hero III with guitar, Guitar Hero Aerosmith, Guitar Hero World Tour with complete band game and double kick pedal, Rock Band with guitar and mic, Battle Field Bad Company, Grid, Mercenaries 2, Far Cry 2, Crackdown, Grand Theft Auto IV with The Lost and The Dammed, Bioshock, The Orange Box, Silent Hill Homecoming, and The Darkness. I also have numerous track packs for GH 3, GH WT and Rock Band. So... after that really long list that took forever to type does anyone know what price range I could get for everything?