HELP: How much should i pay for this T42 2373-9XU

[ludu35]

Hi all,
Someone is selling me this laptop, it has been used for few months and still in A+++ condition:

T42, 1.8 GHZ, 768 MB RAM, 14” SVGA, 9600 Radeon w 64 MB, Toshiba 60GB w 16MB buffer, DVD/CDRW Combo, additional ultra bay Lithium Polymer battery, etc…, IBM leather case, WinXP Prof., Office 2003, WARANTTE till 9/2007.

How much should I pay for it? Please advice. TIA

-LuDu