Ok I have been through what you are about to go through 2 Months ago.
Our building is +- 1200m2 and i have 80 Users in an open plan office.
First of all you CANT make use of fiber for you internal network, I will call you insane if you do, Thats if i understood you post correctly.
Standard PCs will then either need some sort of network card that allows a fiber connector, or a normal Ethernet converter, besides that, Fiber my only have slow bends, because if the angle is to "Sharp" its light source will not be able to travel. you cant pull it , cus it will break internally, you cant fix it your self if it breaks ,unless you have R250 000 splicer. (Remember fiber is glass)
when you terminate the fiber to a wall plug or directly to the PC, most of the time there will be bends that will be too sharp, The list can go on and on. (So maybe you should not do this your self)
This is what I have done.
The whole LAN network is Cat5e. Wifi is only meant for meeting rooms and Tablets. 3 AP's merged to appear as one AP, It simplifies it for the users sake.
You can cut some cost by running the cable from the server room directly into a desk with a compartment to keep the cables out the way instead of terminating into the skirting, Depending on your office layout you can run the cat5 cables down divider poles connected to the desks from the ceiling. I have provided 1 and 1/2 cables for each desk.
What ever you do ,DONT make use of your companies resources to install the network, rather get a networking company to do this, cus its hardwork plus they crimp cables for a living and can do it allot quicker than most people, if something goes wrong its easier to get them to come and fix before you sign the Job Off, and they know the ins and outs
I have 11 servers virtual, and only have 2 Dell R710 servers with 48GB RAM each redundantly connected to 1 NAS device.
so 3 Physical servers and it performs very well., 2 Cisco Firewalls for redundancy, 1 Cisco IP phone gateway and many Cisco IP desk phones.
ALL desks have POE, to power the cisco IP phones, and are driven by the cisco Switches, an i have no issues , bearing in mind 1200m2 office,
Keep servers and patch panels in 2 different server racks if you can, Make sure you have enough power in your server room, My Previous server room was connected to the Kitchen and earns running of the same circuit, watch out for that. When they install they install the network make sure they label and connect to the patch panels in sequence, They messed up my network by terminating it randomly to the patch panel.
Make sure you have enough network point too little and you wil start using switches at desk points, which just kills your network after a while.
