Safari cache too big.

[Eugene]

Hi all,

Students in my school are limited with their workspace size. Being an 
avid, all things Apple, person I encourage them to use Safari over 
Explorer but unfortunately Safari generates extremely large cache files 
where as Explorer can have its cache file set to a certain size. 
Besides using the 'Empty Cache' under the Safari menu is there any way 
of setting a maximum in Safari or at the very least is there a script 
that will automatically delete the cache on log off?

                      regards
                      Eugene