SeeQua Ya HardDrives is a nice collection that exists as a part of SeeQua Ya Icon Series.
SeeQua Ya HardDrives set provides high quality replacement icons for the Mac OS X hard drives, including: FireWire Drive, USB Drive, iDisk, FileServer and Internal.
Every volume (disk), application, file, and folder on your Mac is represented by an icon. Volume icons tend to look like the item that they represent, for example, your hard disk looks like a hard drive, CDs and DVDs look like discs, and removable drives look like removable drives.
SeeQua Ya HardDrives set allows you to give an original touch to your desktop no matter the file types or applications you choose to associate.
To learn mode about changing your default Mac OS X icons you can access the Apple Support page HERE.
