How to index network files AND not fill your primary drive

How do I do this:

Due to company policy, my "Documents" folder gets relocated to a folder on
our SBS server. As far as I can tell, my only option if want to include
these files in my Vista search index is to make these files offline
accessible.

When I do this, Vista makes a local copy of the files somewhere under
c:\users\myusername\AppData.

My problem is, that my main drive is a fairly small 36Gig 10.000rpm WD
drive, and it is filling up with the local copies of the contents of my
Documents folder.

I can relocate almost all other folders in c:\users\myusername, or use
junction points, to point folders to other drives, but i can't find any way
to do this with the AppData folder.

How do I achieve inexing of my personal files in this situation?

Regards
Jesper Hauge