For a modern rendition you should check out the Jeff Greer Band's version, simply called "Derry." They changed it up for their 2001 CD and have since made it even better. Until their new CD comes out you can check out a decent video of it on their website, www.jeffgreerband.com.
They are a celtic alternative (celternative) band but this isn't too in your face if you are all trad!