HDD Observer was available as a giveaway on August 1, 2008!
HDD Observer is a powerful monitoring and repairing tool for your hard drives.
HDD Observer can detect a lot of hard drives troubles and give a solution for them:
Windows XP/2003 Server/Vista
Tweak a Myriad of Windows Vista Features and Enhance its Performance. DTweak includes Registry Cleaner, Disk Cleaner, Disk Defragmenter, Hard Drives Monitor and many other tools, plus an impressive choice of optimization and customization tweaks for Firewall, Internet Explorer, Windows Media, Windows Mail and other applications coming in Windows Package. To use these tools and tweaks, you are not required to have technical knowledge or special skills. Beginners will love it.
XTweak is a complex tweaker and optimizing tool especialy designed for Windows XP and 2003 Server.