I put this kit
http://www.windynation.com/Polycrystalline-Solar-Kits/WindyNation-200-Watt-12-24V-Polycrystalline-Solar-Panel-Complete-Kit-with-LCD-Solar-Controller/-/631?p=YzE9NDY= from Windy Nation on my RV, with longer panel wiring and some battery lugs I paid $365.00 for the whole deal shipped to my door. From what I have seen so far its working as expected, once or twice my battery's were down far enough that they needed 60 or so amps. Most of the time the system is collecting around 25 amps a day as its just maintaining the battery's. To get any real need in my trailer I have to be running the heater most of the night.
I like the controller as it shows the info I need without running extra wire and a monitor. With my set up I put the controller in my front bedroom so its easy to monitor from inside the RV. At first I was checking the numbers on the controller and my voltmeter every ten minutes but since the novelty has worn off and I know the system is doing what it does best I don't really look at the number much any more. Just something to think about if you are not a tinkerer or a hard core solar junky.