PC hardware fails on occasion too.
- A former PPC Mac and now PC user.
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OP, if your Macbook has a FireWire port then (IIRC) it supports Target Disk Mode and thus can be connected to another FW-equipped MAC which also supports Target Disk Mode (this connection must be made while both machines are off) in order to allow your Macbook's hard drive to be mounted on the other Mac's desktop (if the hard drive still functions). If it can be mounted then perhaps you can rescue your files and run a disk repair program.
How to use Target Disk Mode
http://www.google.ca/search?hl=en&so...=Google+Search