if you wireless router is in a different room to your office or printers, get one of these, it will network up to 4 PC's and 2 printers

http://www.netgear.com/Products/Prin...s/WGPS606.aspx

http://www.laptopshop.co.uk/Netgear-...king-3-wl2.htm

got one and it works a treat.