I found this thread over in XDA for some different launcher options regarding the Google search bar. I used the ICSLauncherNoSearch4x5v2.zip which removed the search bar and kept all my current settings. Worth a look.
[MOD] Stock Launcher | No Search Bar | 4x5 Portrait Grid | More Bacon Added! - xda-developers
[MOD] Stock Launcher | No Search Bar | 4x5 Portrait Grid | More Bacon Added! - xda-developers