If you have Norton Systemworks, boot from the CD and if you can run the Disk and Win doctor utilities to take a look at your hard drive, do that.
When that fails, and you realize that Windows is fubared and you're going to have to reinstall, consider this a learning opportunity.
Take your hard disk out of the system, put it in an external USB enclosure. Buy a Mac. Attach the enclosure and retrive your files.
Breath easy knowing that this is the last time you'll ever have to do something like this.
awwwwwww man! I wanted to be first to say 'buy a Mac'...