[Amps] RFI - Small Home Network?

[Tim Long]

This question has probably been answered 100 times, but...

I would like to set up a small home network of 4 to 5 computers 
scattered throughout the house, including 2 in the shack.  I am 
connected to the internet through a cable modem and a PC running 
Smoothwall before I get to this machine.  Should I use CAT5?  Wireless?  
Thin Ethernet if I can find cards with BNC connectors?  Will computer 
noise bother the reception?  Will the RF bother the network?  I run 
mostly 100 but 1000 watts on ocasion - all HF.  Thanks in advance.  73, 
Tim, W2UI