I just ordered a new rMBP arriving in about a week. One thing I'm planning to do is as soon as I get the initial configuration complete I want to save an image. I'll use Carbon Copy so I can quickly set the system to a default. This is something I'll need to put in place should I need to have the machine serviced. I know there are other options but since I'll be using Carbon Copy for regular backup/recovery this seems the best method for me. So the question. I'd like to save this to a flash drive if the base image size is not excessively large. Does anyone know the amount of disk space used on a brand new rMBP before you install any additional software?