Netgear sells 10/100 MHZ network cards for about $20 each. Simple to install and universal.
The only reason I'm partial to Netgear is that it is the only home networking equipment I am familiar with. I'm sure that the other products mentioned are probably just as good.
However, one thing that I forgot to mention in my original post, my Netgear router came standard with a very good firewall built-in. Third party tests have proven our system to be quite secure.
Good luck and HAVE FUN!!
You've got some neat toys!!! Is that a .50 caliber?
Some guys get all the luck!!!!!!!