It would also be helpful to have a combo-box of common Null Alternatives (String.Empty, Nothing, 0, False) so it doesn't have to be typed in each time unless the value is unusual.
Thanks!
Clay
As for the renaming of the field, there ended up being problems with the .Item property used within the business object, because we couldn't store off the name of the DataColumn behind the property. So, if you need to rename one of your fields, you have to do it by customizing the field and having the property use custom code.