We have over 15 years experience in the set-up and running of PC and server based networks. Hadden Software provide a complete Network Design and Installation service; including:

There are three main reasons for connecting computers in a network:
Wired or Wireless?
As wireless products become more available and prices fall do we still require cabling between networked computers? Wireless certainly has its place, especially in older buildings where routing cables between floors and rooms is not always possible.
However, in terms of speed, security and reliability - cable is still king. Most of our customers have a cabled core to their networks, but have added wireless access points in locations where staff come and go with laptops on a frequent basis.

Security
The problem with connecting computers to the Internet is that they are then sharing a network with many other computers from all over the world. Protecting the network and the information on it is one of the most important parts of network design.
All our networks are suitably protected by firewalls and anti-virus/anti-spyware software is used both on the workstations, and to scan incoming and outgoing email.