I wanted to say something about why (in my opinion) the water from the air conditioner and/or dehumidifier is bad for plants, but I couldn't find the words in my brain. Here is a link which may help you know why I would not choose the water from that source:
http://www.treehugger.com/cult...
Oh, and I have had lots of luck rooting all kinds of plants but I found Rosemary very difficult to propagate from cuttings.