If ur in the US just go to llama.com I bought some parts for my xbox from there like heat sink and a replacement power supply. It even has tutorials for any xbox repairs. When my power supply was on the fritz it started sparking everytime i placed the plug in, they had a simple tutorial to fix it. While i was waiting for it to be shipped I did the tutorial and fixed it myself. And it extended the life of my xbox for like 3 years plus. It just recently started sparking again but since i had that spare power supply I just inserted it and it worked like a charm. I could have tried to repair it again but i had the spare so just used that. The power supplies run from 24 to 34 bucks but if thats the only problem u have then i recommend u buy from them. http://secure.llamma.com/catalog/index.php?cPath=64_22
