I would second Bert's comments. They can all use the same desktop in the room, no need for a separate laptop. Perhaps using a computer at the nurses station, depending on how the layout is set up. If they know which provider is seeing the patient, they then just forward the note with vitals to that docs inbox.
Wireless speed is fine, there can be issues with connectivity but if you have a good connection you will not notice much of a difference in speed. Connectivity is a function of both layout (metal in the walls) and distance. Wireless N standard is usually pretty good at connecting with minor interferences.
