Hi! I was just going through these same questions earlier in September. As far as what kind of suit, I've seen girls wearing pant suits, but I also heard that some schools do prefer skirts as long as they're knee length or lower. I went with a long skirt suit just to be on the safe side, but if you prefer pant suits that seems to be okay. As far as where to buy the suits, I spent a day looking around, I really liked the Benetton (?) store, and I also looked at Express, the Limited, etc. However, where most of the prices for the jacket *alone* average at 140 dollars, I ended up going to my favorite store New York and Co and was able to find a nice jacket, skirt, AND pretty blouse for 135 total. The material was lighter for those however, so that might be a problem. Hope that's helpful!