I find varnishing figures stressful. Untold hours of painting labor can be ruined in seconds. Here is some advice on how to do it right.
Here’s a handy chart for converting between Vallejo and Games Workshop’s Citadel Color paints.
Vallejo model color is considered by many to be spot-on accurate for painting historical colors, but it’s so doggone expensive.
Here’s a page with information on converting from Vallejo to Delta, Folk Art and Apple Barrel Craft paints.
With so many games using plastic miniatures for playing pieces these days, a lot more people are getting into painting figures. Here’s a very basic technique.
Jenova offers a page with a tutorial on using the blackline painting technique on your miniatures.