MS Paint like you've never seen before
Stanley William Moore is a guy that has done more in MS Paint than I probably ever will do in Photoshop. I remember being about 10 years old and playing around in Paint (or Paintbrush as it used to be called in Windows 3.1), and being decently proud of pictures I'd drawn that I now recall as being total crud.
The usual Metafilter/Slashdot peanut gallery has already piped up with "OMG PHOTOSHOP" and "THIS GUY IS A LOOZER LOLOL!!11", so before you take a look at the image, read the artist's retort to these juvenile dingbats.
Done? Good. Now feast your eyes upon the following small snippet:

The whole image is here, and a proof of the technique follows. I believe a certain "Jimbob" said it well when he typed "All this negativity is like taking Wagner's Ring Cycle and saying 'Bull, you can't create that sort of music with pen and paper, he must have used ProTools'".
Awesome work, Mr. Moore. I could only wish to have such patience.