Both shot with the Canon 20D set to ISO 200, and using a Sigma 18-50mm f/2.8 lens, and Canon 550EX flash.
#1 is at 50mm, f/2.8, 1/100th sec, flash set to 1/32 power with Stofen Omni bounce
I desaturated it in the RAW editor, and then switched to Adobe PS where I tweaked the curves, and ran USM ( 110%, radius 1.0 ).
#2 is at 18mm, f/4, 1/125th sec, flash set to 1/4 power with Gary Fong Lightsphere II (makes an excellent snack bowl at the reception!)
In Adobe PS I copied the green channel, tweaked it in curves, and ran USM ( 110%, radius 1.0 ).
The 20D is a lot of fun. Overall I'm very happy with it, but I don't like the AF. I've installed a manual focus screen, and pretty much only use it on MF. I sure wish the viewfinder was bigger.