... I already do run Qt, but I'm instead looking for a different wallet that delivers all change (after spending) back to my MAIN address, so that I can keep all of my Bitcoin at just one address; Qt does not do this.
If you are using the latest version 0.9.2.1, you can enable coin control (Settings->Options->Wallet->Enable coin control features) and put your main address as your "Custom change address" in the "Send" tab.
