Ultra Cooling?

I was sitting on the john today and was thinking (as i usually do on the john) I wonder if its possable to take apart a window unit style AC and use it to cool your machine. I have a very limited knowldge of how an AC works. I know you have a coolant (freeon or somthing similar) which is compressed when its compressed it becomes very cold. Later in the cycle i know that this gas recondenses and starts all over again but thats about it. Any one ever heard of anyone doing this or have more info about the AC than I. Ill prolly never put the guts of an AC in my box but i just wonder more if it can be done.