got all my mod chips here..
http://www.modchip.com/
i bought the usb 1 wire modchip.. opened up the system and it did not have the right layout directions that came with it.. but they had it online... i would never try to do one for someone else..
when i opened mine the screws were glued in or something. took me hours to do. but got it back together and it works fine..
but the bad thing now is 99% of all games that are coming out now are on dvd and i have not heard of a way to burn them yet... for reg games you will also need either disc juggler or cdrwin to make your back ups