Ted introduced me to Artrage a while back. A digital art program that simulates oils and acrylics amazingly well. See his amazing work here.
This is a closeup of a traditional piece I did below, but once it was scanned in I was able to keep throwing strokes down here and there when I saw a need. It works well with photoshop if you export the file right.
Fun little addition to my tool collection.
-Wes