These were taken one night in my backyard.  I had someone shine a flashlight on the spider so I could get sharp focus.  The spider is a little smaller than a US Quarter.  All taken with the Panasonic Lumix FZ20 and a Nikon 6T closeup lens.  Also used a Sunpak 383 with Stofen Omnibounce diffuser with the head angled at 60 degrees to shine the light from above.  While shooting the first one, a smaller wolf spider walked in front of the bigger one, and I quickly found out that they are sometimes cannibals.... You can see in the first three images the smaller wolf spider in the bigger one's fangs.  Too cool.