hi, first of all i want to know that du u hav a lan broadband conn. or a router one. If u hav a lan broadband connection than its very easy to connect.
download a software (angry ip scanner) its a freeware appn. (just type in google and u will get it) . Now go to control panel->network connnections->local area connection->properties->internet protocol(tcp/ip). now in the ip address field type 1.1.1.2 & subnet mask 255.255.255.0 (keep the below 3 fields empty)and in the other pc follow the same steps & in the ip field type 1.1.1.4 & subnet mask 255.255.255.0.
now scan from angry ip from any of the pc and u r done. see to it that both pc hard drive are in sharing mode.