Need help with finding out value of home theater

I am quickly needing info. on what the value of certain equipment is if I am to sell it. I know the values of the products new, but it it is 1 1/2 years old, but has been in storage and not been used for the past 10 months. Here is the list of items :

B&W Signature 805's - 1 pair
B&W Nautilus HTM1 - 1
B&W ASW800 - 1 pair
B&W CCM80's - 2 pair
McIntosh MX134 - 1
McIntosh MC126 - 1
McIntosh MVP851 - 1
Audioquest Volcano Wire (10 ft.) pair - 1 pair
Rockustils Speakers - 1 pair
Active Thermal Kit - 1
McIntosh control panel - 1
Mitsubishi plasma TV (50 in.) - 1

I would really appreciate it if anyone could help me out on this.....