An interesting article in MadScientist magazine
I prefer to dig up a recent burial. I like the hands-on approach and you get a bit of a buzz from the manual labour. At this point you might also like to get yourself an able-bodied (though preferably slightly retarded) assistant who can help with the spadework.
The public also gets the added bonus of something interesting on the TV. There's nothing like a gruesome exhumation or two to pique people's curiosity.
Here you can see me at work trying to pry the concrete lid off. I originally had the ski-mask on but this is hot work so I rolled it up.