Check out one of the many kayak demos that are held this time of year. The calendar on my website at www.laflyfish.com
lists those for Backpacker (BR and Lafayette), Pack and Paddle, and Masseys (BR, Covington, New Orleans). These events are usually on a Saturday, and feature numerous boats of different types for you to test paddle. You can also get pointers on rigging for fishing, as all of the folks who run these stores happen to be excellent fishermen as well.
Now, it may happen that the price on some of the boats might be higher than you want to spend. Academy is cheaper, although most of their boats are not of same quality as what the paddle shops sell. I'm not familiar with a Percision 12 that they sell. But I DO know of a Perception 12. That is made by Confluence Watersports, makers of the Wilderness Systems. If that's the boat you're looking at, then it would be a Best Buy for the price they advertise.
Still, before you buy, definitely go test paddle some boats. Several years ago, I was all ready to buy a Malibu for bass fishing, when I paddled an OK Caper just for the fun of it, and fell in love. That's like switching an SUV to a Prius! But the Caper has been by far my favorite yak to fish, fresh or salt, even moreso than my Tarpon. You just never know...