I feel the exact same way! Im am so relaxed thinking about my interviews because at this point they are competing against one of my top choice. Congrats on being admitted!
I just had my first interview weekend at UVA for BIMS as well. My advice is to prepare as if it will be stressful, but the faculty at UVA are so friendly that you will probably enjoy most of your faculty interviews. I had a great time meeting with the faculty as they did not ask questions that were malicious. They also may get back to you quickly for acceptances. I was accepted about a week after the interview weekend!