Other Website, for Xbox 360 modding, here is the best place to get advice. The thing is here is no one is spoon fed this stuff, there are tutorials to follow, most of them are fairly simply to follow, as long as you can solder and can read English, you should be fine.
There are some really smart people here, I'm not talking about average smart, I'm talking about Xbox 360 smart, the staff here alone are Xbox 360 experts, not just forum moderators and administrators, people here are involved in all the aspects of xbox 360 repair and customization, so here is the best place to be.