Connecting 2 computers for Game Play

I have Dell & IBM Laptop and am trying to connect the two
for Game Playing. I don't need any Internet or Printer
sharing. I bought a Patch cable and for the Dell a 32 bit
Fast Ethernet Cardbus Adapter since it doesn't have a spot
for the patch cable.

I thought it would be fairly easy but am really lost on
this.

Can anyone provide help or steer me in the right direction
as to what else I might need or how to network between the
two?
Thanks
Ben