What will game stop give me for a working ps2 silver slim, 3 controllers, 2 wii games, and 44 ps2 games

Question

I wanted to buy a ps3 slim and I was thinking of trading in things to decrease the price. Stuff I'm trading in~ 1 ps2 memory card 3 ps2 controllers 1 slim ps2 wii games(with cases): 1. Goosebumps horrorland 2. Pokemon battle revolution Ps2 games (with cases): 1.Tony hawks underground 2. tony hawks underground 2 3. Call of duty 3 4. --- 5. Legends of wrestling 6. --- 7. Midnight club 2 8. Twisted metal black 9. Grand theft auto 3 10. Matrix path of neo 11. Desert storm 2 12. Jonny Moseley mad trix 13. Medal of honer rising sun 14. Trophy bucks cabelas 15. Black 16. Kill zone 17. Need for speed most wanted 18. Midnight club street racing 19. Grand theft auto vice city 20. Medal of honer europeon assault 21. Hit man 2 22. 50 cent bullet proof 23. Metal gear solid 2 24. Medal of honer europeon assault (again) 25. Battle field 2 26. God of war (2 disk set) 27. Call of duty 28. The Simpsons road rage 29. Grand theft auto San Andreas 30. (Another) grand theft auto 3 Ps2 WITHOUT boxes: 1. time splitters 2. Duel masters 3. Call of duty 2 4. Naruto uzumaki chronicles 5. Naruto ultimate ninja 6. Thunder strike 7. Naruto ultimate ninja 3 8. Sky odyssey 9. I ninja 10. Destroy all humans 11. Naruto ultimate ninja 4 12. Naruto ultimate ninja 2 13. Naruto uzumaki chronicles 2 14. Star wars Jedi star fighter 15. alvin and the chipmunks 16. Max payne ---= never mind it's missing...