Halo in Off Topic
The only good thing the PC version is for if you dont have an Xbox or If you haven't played the xbox version and dont know about the better speeds :P. My friend also purchased the PC version...but it lags since the computer also has to run other programs, windows being a big one. Purchase Halo2! Or at least reserve your copy today!
Internet games are generally MUCH better than same-screen split screens. Why you say? Stealth. Over the internet (or even better a lan) it's somewhat easier to surprise your opponent. =]