Digital BW, The Print

To all

I don't have much, if any experience with plug ins.
Was working on an image last night that it would be nice to give it a 
lot of scratches on the negative look...PS's "Dust&Scatches" is not 
the effect I'm looking for...more the film run through projector with 
sand in it. 

Recommendations on plug in packages?
Places to acquire them from?
Recommended $ to not exceed?

Will start looking around myself and wanted to ask here as well.

Thanks in advance,
Cleavis