Ive seen those portable, windowless air conditioners advertised over the summer. Ive never used one or known anyone who used one so I cant give you too much info as per how loud it is, how cold it keeps the room, if there is any type of 'water pan' that needs to be constantly emptied..... i was considering using it for my room, but im not up to that stage yet. The ones I have seen run about $600. The ones Ive seen sit on the floor, like a portable heater, so space is an issue aswell. Some of the big appliance chains may carry them. Here, up in NY, PC Richards carried them over the summer.
www.pcrichard.com , click on A/C, = windowless portable.
larry