How much is iMac worth?

I want to sell my mac and use the money along with some of my own to get a newer one. i was wondering how much my mac would be worth with all of this on it. and if the software isnt worth it then just tell me how much its worth with a system restore.PLEASE help me out!!

Microsoft Windows XP SP 3 Bootcamp install.
In Deal
Mac Keyboard(Wired)
Mouse(I started using this one because the mac mouse that came with this was soooo short)
Everything Mac booklet
iMac Applications Install DVD
Everything Else Packet
iMac
Width:19in
Height:16in
Snow Leopard
Power Cable

Hardware OverView
Model Identifier: iMac9,1
Number Of Processors: 1
L2 Cache: 3 MB
Bus Speed: 1.07 GHz
System Version: Mac OS X 10.6.8 (10K549)
Processor:
2.26 Ghz Intel Core 2 Duo
Memory
2GB 1067 MHz DDR3

Graphics
NVIDIA GeForce 9400:
Chipset Model: NVIDIA GeForce 9400
Type: GPU
Bus: PCI
VRAM (Total): 256 MB
Displays:
iMac:
Resolution: 1680 x 1050
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Built-In: Yes
Mentionable Applications
Default Applications that come in Mac Install
Microsoft Office 2011
Microsoft Execel
Microsoft Word
Microsoft Powerpoint
Microsoft Outlook
Home Design Studio Pro(already installed and serial key put in, but don’t have disk)
Custom Workshop Pro
DAZStudio
DAZStudio
Bryce7
Hexagon2
Bryce5
Adobe____CS5
After Effects
After Effect Render Engine
Adobe Application Manager
Bridge
Device Central
Drive CS4
Extensions Manager
Flash Builder 4
Illustrator
InDesign
Media Encoder
Media Player
PDF 9
Photoshop
iLife Series

Check e-Bay for a similarly "spec'ed" iMacs.

You can also check a website called...Mac2Sell.net

- Nick

Unless you are including the original disks for all that software, the third-party software is worthless.

Mac2Sell suggests that your machine (a 20-inch 2009 iMac) is worth $500. That's if the machine is in good cosmetic condition, has no known problems, and the original system install DVD is included.

If you are including the original DVDs and licenses to the software, you should be able to get a bit more for it.

I believe that you have received good advice from the previous two posters, and since the B/S/T forum is the proper venue for selling of items at MacForums I am closing this thread.