This seems to be the right forum for this.  I will probably order a wired camera system in the next few days.  It includes 4 Sony cameras (520 lines, adjustable focal length without taking the camera apart), an Internet capable 160 GB, 4 channel recorder, 7 inch quad-split screen monitor, and a UPS. The price seems right at $1695 delivered, ready to plug and play.  I am told it will survive in an un-conditioned steel building (near Bakersfield CA)  I expect temps in excess of 120 at times.  Does anyone know if is true?  Also, how does the Internet part of this thing work?  I have a DSL capable phone line, not being used for Internet now in the shop.  I assume another router is required? 

This is the place  http://www.nvproducts.com/securitysys.htm  I do have some positive experience with them.

 I think this is the same UPS, it is not on NV Products site   http://www.apc.com/resource/include/techspec_index.cfm?base_sku=BR1500LCD&total_watts=200 

Any comments or suggestions will be appreciated.