Disk repair/formatting software (not apples disk utility app)

Does anyone know of some hard disk formatting or repair software that isn't the osx included disk utility?

I have a sata disk that has semi died on me, I think it has some bad sectors, I have tried reformatting/repairing (using both apples disk utility and windows xp) to no avail. even after formatting (as msdos) windows will ask to format the disk, and hangs about 2/3rds of the way through formatting.

OSX disk utility seems to format it ok but half way through installing osx on it the installation hangs.