Hi Tom, thanks for the reply!
The cameras will not be monitored just used for reference if necessary and will be high value site.
After seeing your comments and looking into it want 5 fixed bullet outdoor cameras, 4-5mb
Also need 8 fixed dome cameras internally, 4-5mb.
I think an ip system is indicated.
We will avoid BTs pole! Thanks for pointing that out
Hoping someone can help suggest what cameras are a good buy at the moment and what system (HDD, screen etc) we would need around this to be practical?