This whole thing is a great idea -- I'm going to move this into a `utils.py` module and allow configuring the default charset via a django setting, though, when I pull it in (I can sort that out for you, though).

Also-- below I noticed you were using a capitalized method name; I'm not a huge, huge [PEP-8](http://www.python.org/dev/peps/pep-0008/) stickler, but I do wonder why you went through the trouble of capitalizing it.  If I remember correctly, when the admin is building its field list, the `ModelAdmin` object is checked for a matching method before attemping to check the underlying `Model` for a matching property.