I purchased two 80w panels from an ebay seller. I can research the individual seller if you would like. I have a Morningstar Sunsaver MPPT controller that I am very happy with. The Morningstar controller seems to able to get charging current in cloudy and foggy conditions and I do not go to trouble to orient panels directly towards the sun. Other than direct shade from trees it seems to do pretty well. (I don't think that any controller would solve that scenario).
I am not using a display. I have a Xantrex LinkLite Battery Monitor which I love. Although it does not directly read solar panel details, I do get to see the bottom line which is how much current is going into or out of the battery. To my way of thinking, if you have a battery monitor you probably have all you need in terms of monitoring whether you are getting effective solar performance. If you don't have a battery monitor, I would still try to talk you into getting a battery monitor instead of a display. The battery monitor gives you so much valuable information it is well worth the investment even if you don't go solar.
After getting your 100w panel, you may decide that you want a larger array. Make sure you get a controller large enough to accommodate any conceivable panel upgrades you might do at a later date.
2012 Wildwood 24TBSS
2x80W Solar Panels, Morningstar MPPT Controller, Xantrex LinkLite Battery Monitor, Xantrex ProWatt 2000 Inverter
2010 Toyota Tundra DoubleCab 5.7L 4X4