Cool style/themes for controls
If you haven't seen the excellent control skins released by Corrina Barer (A designer on the Silverlight team), have a look here:
Bubbly
Red
Flat
Rough (This one is very cool)
I converted the rough skin to WPF without any major issues!
I will convert the others also and then post the source (Hopefully with permission from Corrina?)
If you are in the market to buy some control themes for WPF, here are some:
Infragistics Theme Packs
Reuxables