I was wondering if anyone would know the typical cost average of a WAN for an organisation, my question is:

"The Directors have decided to expand into the south of England and suitable premises have been
located in Beaconsfield, Buckinghamshire. It is proposed to open an office there by the end of the year. In view of this, Scott wishes to update the IT resources and extend the computer network. The
two offices need to be linked together to facilitate communication between staff."

Therefore it must be done by WAN, but anyone know how much roughly it would cost?

Thanks

Well we're starting to talk link speeds between the businesses.  Security requirments and what actually needs to be shared and on what basis i.e. real time data transfer like an ATM machine network or more static data like shopping statistics for the last hour. 

It could cost from £100 too a £10000000 all depending on the businesses requirments