How much is a powerbook g4 worth?

Hi

Planing to purchase a new notebook urgently,but have some finicial situation right now,so am thinking about selling my current powerbook G4.so i am eager to know how much i will get,so that i can have a idea how much extra bucks i need
any thoughts ??my configuration is

*80GB Hard Drive, 512mb RAM
*SuperDrive
*OS 10.4 + iLife 06
*Mini DVI to VGA & DVI connectors PLUS the mini-dvi to svideo/composite
*Newer Battery
*iSight Camera
*Apple BT Mouse
*Apple Wired Keyboard
*eligible for extended warranty

It's very difficult answer to answer this type of questions in a froum
may be i can figure out if i see how it looks like,any damage to physical parts or something like that?
how much is your monitor size?

As far as my first impression your G4 can be awarded between ~$800 and 850$.so how about the warranty did you extended it? or just eligible??
in between i am curious about your battery condition how much back up you gets currently..battery has great effect while re sail

The batman sticker, scratch and missing key will seriously affect the price.
the battery should be on perfect condition,You could look on ebay for completed auctions and comparing them with your machine.You will seriously reduce your perspective customers with the sticker. I wouldn't buy it with that without factoring in a replacement part.