If your wife isn't interested in fishing and will just be tagging along to keep you company, maybe she'll be siteseeing or taking pictures, take a look at the Hobie Revolution 11. She can pedal that kayak and control her direction with a rudder. Will make her life much easier and enjoyable... and she can tool around the area while you fish this cove or that one, or hang in the current and work the dam..... it's an investment, but one that will pay off in the long run.
In your case, look at the Hobie fishing platforms before you make your final decisions, if your fishing areas are mostly deepwater, 3' or better, the Hobie will kick butt. If you are fishing below the dam, the hobie will allow you to hold position IN current and fish, without the use of an anchor, hands free, by slow strokes on the pedals. No paddling required.
The Outback or Proangler 12 or 14 might work for that.
Hope this helps.
Miss T and I fish the Commander 120 in the lakes around here, but I am looking at the ProAngler 12 for the larger lakes, and she is checking out the Revo 11. We fished the Hobie Adventures for Salt Water for years... but the travel to the coast became less frequent as we got older!