Massive Voodoo has an interesting article on which light to use for painting. I used a halogen light for many years,
painting
Painting A 28mm Mercenary Hoplite
The Ancient Battles site offers a nice article on building a Warhammer Ancient Battles mercenary hoplite unit for a Persian army (for use with the Alexander The Great supplement). The author uses a variety of painting techniques, and there are some nice photos.
Painting Ethnic Skin TOnes
Cool-Mini-Or-Not has a good article with pictures on painting non European skin tones. There are photos of the various peoples, along with virtual paint chips and a discussion of how to replicate those tones.
Undercoating Your Miniatures
When you’re painting a house, it’s said that the preparation is most of the work — and that poor preparation will always result in a poor outcome. I think the same may apply — to some extent — to miniatures. A poor undercoat ruins your figure before you even start. Too much primer, too little, too slick, too grainy. There are a million ways to ruin a figure. Here’s an article on the subject of undercoats.
Airbrushing Miniatures
Grey Goat studios has this tutorial on airbrushing your wargaming miniatures.