Pretty much it entails lowering the exposure a few stops, using 100% recovery, and then giving it a little fill light, and some black.
Here is a Lightroom preset if you want to try it out:
Right-click and save as...
If you need to know this goes in your User Preset folder which is located in Windows XP at:
C:\Documents and Settings\<Your User Name>\Application Data\Adobe\Lightroom\Develop Presets\User Presets
If you have Photoshop CS3 you can also open JPG's as RAW files and then make the adjustments necessary.