Buying PS3 Games!!!!

Hey guys!
I'm buying a lot of games for PS3, if you want to sell a PS3 game, I'll buy it.
Please posts which games you have and I'll give you a price.

I will pay more for these games:

Call of duty 4 : $8
Little Big Planet : $4
Borderlands : $4
Battlefield bad company 2 : $8

ALL PRICES ARE NEGOTIABLE