script question (cron - adobefnt*.lst)

[Don Montalvo]

i've been trying to create a cron script that will search the entire 
boot volume for all instances of "AdobeFnt*.lst" and delete those 
files. here are two scripts (slightly different syntax) that seem to 
do the trick but i wanted to run it by you guys (my gurus...my 
gods...my...um...well, you get the idea <g>)...

these two seem to do the same thing:

	find / -name 'AdobeFnt*.lst' -exec rm -f {} \;

		(and)

	find / -name "AdobeFnt*.lst" -exec rm -f {} ';'

first question: which script is best for using as cron job?

second question: users will keep volumes mounted...is there a way to 
keep the script from searching anything that's not a local disk?

====here's the terminal display====

[montalvdpb:~] root # find / -name "AdobeFnt*.lst" -exec rm -f {} ';'
find: /Volumes/SHARE/.Trashes: Permission denied
find: /Volumes/SHARE/dropboxes: Permission denied
find: /Volumes/SHARE/Temporary Items/0: Permission denied
find: /Volumes/SHARE/Temporary Items/501: Permission denied
find: /Volumes/SHARE/Temporary Items/502: Permission denied
[montalvdpb:~] root #

===================================

thanks!
don