...in mac os x, fonts are stored in various locations that your applications will look at to load what it finds when you start up your programs...
...there is a great free font manager you can try...
...it does a good job...
...fonts are stored here on mac os x:
System Domain - System/Library/Fonts
Local Domain - Library/Fonts
User Domain - Users/[name]/Library/Fonts
Classic Domain(Mac OS 9) - System Folder/Fonts
Network Domain - Network/Library/Fonts
Application Fonts - Library/Application Support
...with fontexplorer, there is a tool built in that will clean out your font locations, leaving those that were installed by your system install...
...the font hierachy is as follows, it is good practice not to have duplicate fonts across the system, if there are they will be opened from the following locations in this order:
1. Library/Application Support
2. Users/[name]/Library/Fonts
3. Library/Fonts
4. Network/Library/Fonts
5. System/Library/Fonts
6. Classic Domain(Mac OS 9)/System Folder/Fonts
...be careful manually removing fonts from the System/Library/Fonts area, as essentila fonts are stored for system stability, best to leave well alone...
...fonts used for you adobe applications and no other application are stored here:
/Library/Application Support/Adobe/Fonts
Have fun!!
Andrew