Not specifically RIB related but perfect for protecting your pride and joy.
I have a used Avtech AVC760 (Model 1) 4 Channel DVR with 150Gb drive fitted.
Specs available here
AV TECH CCTV SYSTEM
Manual available here
It can be networked and accessed via iOS, Blackberry, Android, Windows smartphone using Avtech's free eagleeyes software on the App / Play store.
Works perfectly (only replaced as upgraded to 8 camera system)
All you need to do is add the cameras.
Looking for £50 + Postage, any questions please ask.