Question : Medium sized network wireless solution

Hi guys,
      Im looking for the best solution to the possible scenario.

I have a medium sized business that I will be upgrading the infrastructure to a wireless solution.

they currently are using a linksys 4 port router connected to two 40 port switches on different floors which is then going to all of the nodes.  (yea I know...don't shoot the messenger)

I would like to upgrade them to a wireless solution that will be able to cover 60 nodes as well as have some access restrictions.  

They currently have no Active Directory.  It's just a free for all.

What do you suggest.  Thanks.

Answer : Medium sized network wireless solution

That is for connecting the antennas of the access point, you can get variations of antennas. The access point have gig Ethernet, will also support PoE (Power over Ethernet)