Hey there and how ya going? If you're interested in a sit on top that has performance, is stable, has storage inside, and can run rivers from flat to whitewater, than take a look at Fluid's "Do It Now" sit on top.
Do It Now - Whitewater Kayaks - Kayaks
It's a great boat, stable, and easy to paddle. Completely bomber plastic and will grow with you as you develop your kayaking skills. It's not your average sit on top. It can carve, surf waves, and will roll if you have one.
Let me know if you need any help with it.