Hey, your box is full and I am heading out of town so to answer you about MCG's reception I would say even though the reception says casual it was more business casual. Guys had on khackis and polo shirts and girls were in nice pants and a shirt. I was going to go in jeans and a shirt but luckily my friend made me change cause she wanted to wear a skirt. It is really casual so I am sure how you are dressed doesn't really matter in the end but if you want to feel appropriately dressed I would go with something nice but not as nice as church clothes. Good luck at your interview! Let me know how it goes.