So as you can see you can now update your AMD video card drivers through Steam! Now what about chipset drivers? AMD blogs about it here.
With today’s exciting announcement from AMD and Valve®, Steam gamers will never again have to worry about finding the most recent ATI Catalyst™ graphics driver. PC gamers can now detect and install the latest ATI Catalyst™ driver for their ATI Radeon™ graphics card directly from within Steam! Gamers using ATI graphics will not only be kept posted on the latest available drivers for their hardware, but with every update they’ll know that they’re getting the overall best possible gaming experience AMD and Valve can provide.