Get Knoppix
here. (Click on the American/British flag to change to English.)
It's a Live CD version of Linux, that does not install anything to your hard drive. Boot up to it (Change your boot sequence to your CD-ROM drive.) And it'll take you into a very nice comfortable Linux distribution. It can read NTFS partitions just fine. And you can get access to your files here.
Two questions though: 1) If your hard drive is having problems in itself, such as hardware failure...you may run into the same problems. It's it's just a FUBAR'ed Windows Install, you should be fine. What is the problem?!?!?
2) How are you going to copy/backup your files?!?! I believe it has USB 2.0 support, so an external drive would be ideal.
(I hope that was all right

)
KS