Just for future reference until I have a tech blog again, and because it the dock and lists look better this way.
Add Highlight on Roll-over to Dock Context Menus
This simple but very useful addition highly improves the usability and contrast of the context menus in Snow Leopard. All you need to do is use a simple command in Terminal.app.
defaults write com.apple.dock mouse-over-hilite-stack -boolean YES
killall Dock
