Hard point wiring and wireless.
Drop a couple of data jacks to each work area and also provide power jacks for the "wall warts" of a wireless unit. The hard points gives access without the special wireless NICs which would be useful for printers, rovers, sniffers etc. The wireless has a range of something like 1,000 feet ( more if you spend some serious cash) so keep that in mind. The range is also very dependent on what is in the room. If the room has a alot of steel in the walls for structual reasons, your range will be less. If it's very open, you may get more range. This is where you need to work with the vendors very closely AND have them demo it.. dont take the salesman's word on how well it works.
I dropped cable into one place not in the walls but in the floor with pop-covers.. just like you would do for microphone jacks on a stage. That way you can have the jacks right by the tables instead of having drop cords stretched across the floor.
Mike S
"Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin