Thanks for everyone's opinions. They are having a kayak jamboree on May 5th on Lake Washington. There will be a couple of hundred of kayaks to try out. I think I'm going to go and paddle as many as I can before I buy.
I got a pretty basic malibu kayak last year and caught plenty of fish without the pedal drive etc though I am sure they do make fishing easier. I actually found that I like the past time of kayaking by itself and sometimes just spend a sunny day paddling around and not doing so much fishing though I always bring my stuff.