Disk Utilities that aren't Disk Utility

Hey fellow Apple-Core members, been a while since I've posted. I have a hard drive that's being really difficult, it's split into three partitions, one of which won't mount and it crashed Disk Utility every time I try to format the drive. Are there any utilities any of you folks have used to wipe a drive that're a little more potent? I've also tried running DU from the recovery partition, still no dice. Thanks again!