Jetico BCWipe -- www.jetico.com
BCWipe integrates directly into the Windows shell to provide wiping for files and folders via the right-click menu as well as a 'Task Manager' that allows you to setup wiping jobs. As this implies, you can use the Task Manger to do scheduled wiping, cleaning everything from free space to deletion and wiping of specified files and folders. It supports a range of methods including the ever-popular DoD and Gutmann profiles, and you can optionally specify to wipe directory entries for FAT and NTFS as well as slack space. Finally, it also comes with a swap-file encrypter that runs in real-time. For Apple fans, Jetico also provides a version for Macs. A trial version is downloadable, the full version $US50.
MiniTool Drive Wipe -- www.minitool-drivewipe.com/drivewipe.html
There's something to be said for simplicity. MiniTool Drive Wipe has just two buttons--Wipe Partition, and Wipe Disk. Clicking either brings up a dialog with the partition map of your drives and, depending on which mode you went with, allows you to select whole disks or individual partitions. After that, you choose one of five methods, including a 3-pass and 7-pass DoD standard, and you're done (bar waiting for it to finish). The tool is free and licensed for personal use only, commercial use is prohibited.
Lavasoft File Shredder--www.lavasoft.com/products/lavasoft_file_shredder.php
Lavasoft's File Shredder, as the name suggests, focuses on files and the filesystem, so doesn't support full-partition or disk wiping. It does, however, provide plenty of options to wipe files and folders--by default, three core algorithms are offered but you can choose from 13 different methods that cover popular military standards including the US Navy, Air Force, Army, NSA and of course, the ever popular Gutmann. The tool features wizards for 'shredding' files and folders, the Recycle Bin, free disk space and system files which it classes as temp files, browser caches, and cookies. It's not as comprehensive as other tools covered here, but the wizards make it easy to use. File Shredder has a trial period but is otherwise $US30 for the full product.