I did some digging around for myself to find some Photoshop brushes and tutorials for a Halloween images and figured I'd share what I found. There are tutorials for spiderwebs and how to grunge up an image as well as a variety of photoshop brushes to help get the job done. These ought to get rid of the 3D shinyness that Poser images often have.

Spiderweb Brushes
http://getbrushes.com/nature-photoshop-brushes/in-obscuro-spider-web-brushes.php
http://www.brushdownload.com/comment.php?dlid=164&ENGINEsessID=8106352c318977c8fcf8b59e31cd317d

Blood Brushes
http://www.photoshopbrushes.com/brushes/37.htm

Grunge Brushes
http://www.photoshopbrushes.com/brushes.htm

Spiderweb Photoshop Tutorials
http://www.vladstudio.com/photoshoptutorials/?40
http://www.photoshop3d.com/organic/3d-spider-web

Photoshop Grunge Tutorials
http://www.webdesign.org/web/photoshop/drawing-techniques/ancient-grunge-scroll.10698.html
http://www.ephotozine.com/article/Grunge-style-layer-tutorial
http://www.computerarts.co.uk/tutorials/2d__and__photoshop/distressed_effects_in_photoshop
http://photoshop-tutorials.deviantart.com/art/Grunge-Signature-R-26719056

My visual indexes of Poser content are at http://www.sharecg.com/pf/rgagnon

can't have too many resources...;) thanx

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)

Cool :) Thanks very much.

Great stuff!  Thanks for providing the links.