I thought I'd bump this thread again, as it's about a year since we last all added our votes to it.

Xara was our prime tool for doing 'artwork for software' here, but as things continue to move towards WPF/Silverlight, we're going to have to leave it behind.

I know there are other people here doing 'artwork for software' - what are you all using for XAML vector artwork? Or are you still doing what I'm about to do again this afternoon which is to hold my nose and use a load of .PNG icons...