Trade in at Gamestation, anyone work their or can help me??

[COL87]

Im getting an XBOX 360 premium thing with a game for £299

i want to know the trade in value of the games i got, i already know they will give me £38 for my XBOX, and £45 for the PS2, here goes

Far Cry Instincts
GT3
GT4
GT4 Proulogue
ICO (re- release)
F1 05
Forza
GTA SA
Driver parallel lines
Tomb Raider legends
SSX On tour

DVDs
Lost in translation
Paycheck
Ghostbusters
Italian Job (old one)

I reckon with the two consoles im probably good for £130, but not sure if anyone could tell me, thanks.