FREE From Tom Henderson. Why just use 8 point garbage mattes when you can use 50 points! Useful especially if you don't want to do this in Motion (where you should but that's ok).
FREE From Creative Cow. These 5 filters include filters to help you create: FlashFrame, Reverse Play, Fix Exposure, add VU metering, and other plugins.
This
is a site where, after registering for free, you can explore
and use remarkably well done sound files. These files cover
a whole spectrum of sounds.
The
Los Angeles Final Cut Pro Users Group has an international reputation
for knowledge on FCP. There is a great forums page with several
software packages covered...note that Ken Stone also answers questions
here!