Quick Tip: OS X Font loading order, aka Where are my fonts?

OS X loads fonts from these locations in this order:

1. Users->(Your User)->Library->Fonts
2. Library->Fonts (This is for all users of this Mac)
3. Network->Library->Fonts (If you're on a network)
3. System->Library->Fonts
4. (OS9 "Classic" System Folder)->System->Fonts

For more details, see this Apple support article:
http://docs.info.apple.com/article.html?artnum=106417