Here's a set of icons for Steam.
They are individually optimized for 16, 32 and 48 pixels sizes. I also included additional 16 pixels icons for the system tray. You can see all of them pictured above.
This had to be done long ago, in fact they were done some weeks ago but i finally packed them and uploaded.
The zip file contains everything and an instructions file with help to get it all set up.
The icon is Vista ready and includes the following sizes: 16x16, 32x32, 48x48 & 256x256(PNG Compressed) in RGBA (32 bits).
256x256, 48x48, 32x32 & 16x16 PNG files included for dock icons.
Free for non-commercial use.
The logos or characters depicted in this icon are © by Valve Corporation.