I am looking for DC hotel June 24-28. I am hoping to spend under $100/night and would love for it to be a place with free parking and near a metro station. I don't mind it being in Arlington or Alexandria if it is a near a metro. I don't mind something along the lines of a Comfort Inn quality, but would love an even nicer place. This is my first time using Priceline or Hotwire and I don't want to screw up. Can anyone help me come up with some good bids?