I was at the wednesday night meet at chinook talking to buh_buh and a few other people and the subject of XBox Live! came up, and I had remembered using a program that hooks the XBox up to a second network car on your computer or to a router to play people online for free without Live!...
I couldn't figure out what is was at the time, but now I remember... I've used it before and in all honesty, it was great and I may use it again cause I don't have XBox Live yet...
some of you may have used it already, but here is the site for it...
XBConnect