Port forwarding... anyone?
 

OK I have two comps in my office, I only use one for all my work and the other one just sits there and is never used. Since I'm a big Counter-Strike junkie I want to put the other PC to use and make it a private dedicated server for me and all my buds that also play CS.

Here's how I have my network setup, my main pc (this one) has two network cards in it, one connected to the modem and another connected to the other pc via cat5 crossover.

The other PC has internet and works fine and what not but I just spent a few hours setting up all the stuff for the server and now all I need to do is port forward port # 27015 to go to that computer. But I dont how to. Can anyone help me out here?

I've got a linksys router that handles stuff like this for me, might be worth getting one?