I highly recommend
not trying to redo the entire network in your house.
When I had a few days during finals week with no real obligations, I found myself playing an awful lot of online Flash games. I've been a fan of
Quadradius, a sort of checkers game on steroids, but other games tend to become favorites if you search around for them. (Some of the younger folks here might know the new hip spot for games--when you no longer have a school district blocking the hip site every other week, you tend to settle down on one.)