Tom does have great mounds (er, wait, that didn't come out quite right).
Anywho, here's a look back from behind the 8th at CommonGround. One of my favorite holes there, and the mounds were part of the reason why.
Jon Cavalier has a great picture of the Redan hole at Greenbrier which features cool front mounds, in place of the traditional front bunker. Jon?
I've also posted pics of the mounds that Drew Rogers and Dave Zinkand restored at Old Elm's 12th, which I think are fantastic.
Generally, I love them as a change of pace for hazards. In some instances, they accentuate strategy to my eye even better than bunkers do. They just have that "obstacle course" feel about them, which I find to be extremely fun.