Cel shading

[Psyk]

You know games that use cel shading to make them look like cartoons? Anyone know of a way to get a similar effect in photoshop? So if I had an image that looked realistic I could run it through a filter or something so it comes out looking cartoony. I'm kind of a photoshop noob so sorry if this is a stupid question.

 

[Psyk]

Thanks that's quite good. I wasn't really expecting a magic bullet that can make anything look exactly how I want it, but that's a good start.