Welcome CanonUser...
While all the recommendations so far will render a sketchy look, IMO
none will yield the quality of the example you posted.
No free lunch here. If one wants this level of quality, a fair amount of traditional drawing/sketching skills are needed.
See this threads at DPReview for examples rendered by the action Palms suggested (there are two 'hot ones' at the moment):
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http://forums.dpreview.com/forums/re...hread=24671436
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http://forums.dpreview.com/forums/re...4559758&page=1
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http://forums.dpreview.com/forums/re...hread=24674093
...These actions work on some pix, but render pretty noisy results on most people images.
Art Master Pro has a very good sketch effect, but this application is expensive for what it does and is very user
unfriendly IMO and quite labor intensive.
The
Akvis Sketch plugin isn't bad, but again results are far from the quality you're seeking.
Hope this gets you closer...