Former Vice-President Dick Cheney received a heart transplant today, but former President George W. Bush remained on a waiting list for a brain, hospital officials confirmed. As part of a government contract signed while he was still Vice-President, Halliburton performed the reconstruction work on Mr. Cheneys circulatory system, at a cost to taxpayers of $14.2 billion. The doctor who performed the surgery called the procedure extremely invasivejust the way the Vice-President wanted it. A hospital spokesman said that Mr. Cheney was expected to make a full recovery, but that he was somewhat disoriented coming out of anesthesia: When we asked him who the President of the United States was, he said, Is it still me? Minutes later, though, Mr. Cheney was reportedly alert, chatting with his doctors, and shooting people in the face. Former President Bush made an appearance at the former Vice-Presidents hospital, hanging a Mission Accomplished banner in Mr. Cheneys room hours before the operation was completed. 