This tutorial shows an easy 4 step process to creating a brushed steel effect in photoshop. If you have $100 / £50 to spare I recommend buying Eye Candy 5; Imapct, from Alien Skin. Brushed Steel is 1 of a collection of 10 effects which makes up this package. The other effects include Extrude and Backlight and Liquid Metal effects and a Glass filter; perfect for creating those shiny buttons! You can download a 30 day demo here.