graypc50,
First off...Without getting too political... Thank you for doing what you're doing!

I totally support anyone that is willing to head over to Iraq. Regardless of which side of the issue we're on, I wish you and everyone around you the best!
With all that mushy stuff out of the way...onto the networking fun!
Unfortunately I know of no way to use only a regular cat-5 cable to network two computers together. But there might be a way with what you do have. And I have a lot of questions for you.
How are you connected to post on the forums? Is this a reliable connection that you could use during play? (Can you use this connection all the time?) If so, you could always play a multiplayer game using the gamespy system.
Do you have a wireless setup? Like Garyth suggested, you could rig something up like that with one another.
If no wireless, do you ever plug your computers into a router or hub? Two computers connected via their own wires to a single hub or router can create a network that (in theory) should let you be able to see each other.
If none of these work, a crossover cable would be needed. I know that you're in Iraq, and getting one might take some time, but in the mean time, the two of you could try the hotseat setup. It's not the most ideal, but it'll get you two playing together until your cable arrives.
Regardless, good luck, and be well.
