Wireless is a good choice for its convenience.
For speed, security, and cost, wireless cannot touch a wired cable plant.
For mobile users the combination of a docking station at work and a wireless notebook cannot be beat for convenience. Similarly, for use at home either a docked notebook or a notebook + desktop is ideal. Anymore a docked notebook, or even undocked notebook, is a perfectly good "desktop" machine.
For the traditional office you do cable. If you cannot do cable you can do wireless.
If this is a brand new installation, do cable. You can add wireless at any point.
I could give you a thousand links, but this in a nutshell is the gist of the advice you will read.