Here is a 'Grunge' Effect i did on Keira Knightley.
The original pic:
Here is the after pic:
This took allot longer then i thought it would. I ended up using about 15 layers and lord knows how many filters, but i think it is worth it. Plus you
know, who could complain about working on a pic of Miss Knightley lol.
I take it you are using a photoshop -esque type program ? Well best of both worlds is a program called twisted brush - very very good companion to PS
cs2. Complete compatibilty and easy as pie to use.