3. I only have 2 computers to connect and
I wanted to use 100base network cards do I need a network
The simple answer is No. However the Cat5
cable you will need is termed "Cat 5 crosswired"
where the wiring is different. A normally wired lead (where
all connections run straight through) will not work. You will
however need a hub for a 100base network of more than 2 computers.