@Pippinwhite -- I know what you mean about a spiral slice being so much easier. You can save a little money if your grocery store has a decent meat department. They can sometimes spiral slice it right there in the store, and you can take it home and cook it. Makes it easy, and much cheaper.
My particular favorite glaze is stone ground mustard and brown sugar. It gives the ham a great flavor and a beautifully brown crust. Some spiral sliced hams come with a glaze mix, but they're not always that good. I end up having to tinker with the glaze until it's like I want it.