How much is my laptop worth? (Asus M6Va)

Someone wants to buy my laptop, no idea what it's worth. Maybe someone can give me an idea.

Spec is as follows:
# Intel Pentium M 1.86GHz
# 1024+521MB DDR SDRAM
# 2x60GB Hard Drive (one 7200rpm drive) (There's a caddy with 60gig drive which swaps with the dvd-drive, very handy)
# DVDRW Dual Layer Drive
# 15" XGA Widescreen TFT Screen
# ATI Mobility Radeon X700

And the usual other bits and pieces, came with xp home, have pro on it.
Has always worked without a hitch, outlived many a class mates laptop.
Has the usual scratches to be expected with a 3yr old laptop.

Thats about it i think.

EDIT: Review here The Z70Va is the same laptop as mine just a different name for a different country