Here’s an excellent resource from Smashing Magazine that explains
53 CSS-Techniques You Couldn’t Live Without
Whatever app you like to use for design and layout for the web (ahem…Fireworks!) this will surely be helpful or at least confirm what you are already doing today with CSS and Images.

Hello Alan
Can I translate your article into polish and publish at my website?
I will back here and check your answer. Keep up the good work.