Hi.
It would be great if the SQL data grid would have a feature when you can click (double-click?) on a column and at least type a custom filter value in some dialog box or even have list of existing values from which you can choose.
Like the Session Browser has it.
Just don't copy the solution from there because it has bugs :) (http://www.toadworld.com/products/sql-navigator/f/51/t/21830)