So long as I'm on a bit of a role, here's the link to the Rev. John Jackman's articles on lighting. This guy's the author of the book "Lighting for Digital Video and Television" so he knows his stuff. I'm pretty sure I've linked to one or two of these in the past, but this way you get the lot!
DV - Columns - Craft of Lighting
One that's in the archives, but is definitely worth having a hotline to, is his 2002 article "Lighting The Darkness". A great look at how to light night time shots. Between this and watching all seven series of Buffy (not to mention Angel and Firefly) I think I've got a shot!
DV - Lighting the Darkness | John Jackman
In case you missed it below, all these articles require registration.