I'm doing this as a total afterthought... I visited Through a Photographers Eyes blogspot which got me thinking about how I might edit the above photo. I transferred the photo to my iPad and used a program called AutoPainter to turn the photo into something that looks like a painting. There are a few different painting types to choose from, but the only one recommended for use on night photos is "Van Gogh", so that's what I went with.
Yuck, I don't like the result... too abstract, and you've lost too much of the detail. So I imported this "painting" into Photoshop, and used the original photo as a layer (same process you would use if you were adding a texture), selected "pinlight", and adjusted the opacity to 50%. This added a little more detail, and I like the result much better.
For my final edit, I bumped up the opacity to 100%. I guess it's a matter of taste which you like better. I think the 100% below gives the best mix of painting and photo, but that's just me! Check out Through a Photographers Eyes for some great photography and edits!