Get DiskWarrior to repair your startup drive's directory and for any media drives you have connected. No Mac owner running an edit suite should be without this program.
http://www.alsoft.com/DiskWarrior/index.html
Use a utility program like Cocktail to perform system maintenance for peak efficiency and reliability. The program will clean bloated log and cache files which contribute to general system slowdowns.
http://www.maintain.se/cocktail/index.php
How often you run these programs will depend on how much you use your system.
- Don