I picked up the Perception Kingfish from DD Outfitters for 291 bucks and it comes with a seat. He's got several Ocean Kayak models for less than 500. He's also got some Perception Pescadors (same thing as a tarpon 10) for less than 300. After having the Kingfish for a while I really like it, it's stable and dry (I'm 5'10, 250 and have another 50 lbs or so of gear. I can sit side saddle and get in my crate/cooler with no worries. I didn't want to spend a thousand dollars on a kayak and then either not like it or screw it up trying to customize it. To me, I've already gotten my moneys worth and I won't worry as bad about drilling holes in my next one.

He's got some kayak fishing stuff, rod holders, seats, anchors, ect. I ordered my rod holders from Hook One and put a couple of old boat rod holders on my milk crate and made my anchor trolly out of a couple of carabiners and a piece of rope. A brick makes a great anchor by the way. If you go to DD check out his prices on paddles I bought the Magic for 15 bucks less than Bass Pro.