My wife is the expert canoeist/kayaker. She bought us a 16' Wenonah kevlar Aurora, and that is the nicest boat I've ever floated, bar none. It also weighs 40lbs. This year I will bowfish the Feather River with it.
If you decide on a kayak, and have to choose between a medium quality boat with cheap gear or really good gear and a lower quality boat, get the good gear. A good, light paddle for a hundred bucks more makes a much, much bigger difference than an extra hundred spent on a boat. BTW, my kayak is a Perception Sundance, an inexpensive boat that paddles wonderfully.
Though I am partial to American companies that focus on good watercraft, any little boat adds a dimension to hunting, and therefore any boat will do. They all have personalities, and the views you get make the trip worth it every time.
One last little piece of advice: Practice before you put your hunting equipment in it!