Oil Effect in Photoshop

I'm not the greatest whiz with Photoshop so I was wondering if anyone knew how to make an Oil-y looking effect. A link to a tutorial or just an explanation would be suffice.

Ane example of what I'm looking for:
http://imagecache2.allposters.com/images/pic/TRND/FP3921~Edmonton-Oilers-Posters.jpg

I found three tutorials that might fit what you're looking for. In addition, I like using the Plastic Wrap filter to give a shiny effect to art. If you use the Plastic Wrap filter, you'll need to add noise to a solid color, or else have a graduated color; this filter doesn't work so well on solid colors.

Take a look at these tutorials:

http://forums.biorust.com/adobe-photoshop/3502-oily-looking-texture.html

http://icorey.com/index.php?page=tutid4.php

http://www.n-sane.net/text-effects/oil-text/index.php