Trade-in values

Anyone got any idea of how much these games will get me if I trade them in at my local Game or Gamestation? I know they're not worth much, but here they are:

GTA San Andreas (Xbox)

Star Wars Battlefront 2 (Xbox)

Forza Motorsport (Xbox)

Halo (Xbox)

Far Cry: Instincts Predator (Xbox 360)

Table Tennis (Xbox 360)

FIFA 07 (Xbox 360)

LEGO Star Wars 1 (Xbox)

Thanks