Hiya cool_car, We have a forum here just for XBox where you'll find akll kinds of help http://forums.afterdawn.com/forum_view.cfm/58
depends on what type of chip you want. there are two main ways in installing a chip if your good at soldering then thats one way, while if you ar not so good you could get a solderless chip. the only drawback to solderless chips is that they sometimes tend to move out of place and scratch up the xbox mother board