New hinges are available [http://www.powerbookmedic.com/xcart1/home.php?cat=407|here] but the price is quite steep and insofar i have to agree to eTechParts that a.)The repair is quite challanging and b.)It's probably better (for the nerves) to buy a good used machine. On the other hand that might have weak hinges as well. The Bookyard (bookyard.com) used to have a good guide how to do the repair but at the moment the photos don't work so no link here. Another quite useful guide [http://geekspeak.org/articles/20/|here].