There are a pair of articles you may find useful to read in California Kayaker Magazine. All issues can be read for free online at http://www.calkayakermag.com/magazine.html.
Issue 10 has an article on different types of boats. The Pungo is a procreational boat, where the Tsunami is more of a day touring. For the small ponds and such, the rec boat likely would be fine. But Erie can be big water, so not so fine.
Issue 8 had a bit on getting butt time - exactly what others are suggesting here. Article describes why you want it, and how to get it.
I'd strongly suggest the take a course suggestion of getting Butt Time as one of the ways you go about it. Now is the time when the air is warm, but the water isn't, and we have a rash of paddlesport deaths and near-deaths. That class would teach you a lot. An article on Taking Classes in Issue 7 covers some of this.
If you do find the Pungo is the route you are going to go, maybe also read the article in Issue #6 on selecting a recreational Boat. Even within this class of boats (which are generally lower end, and made for paddling when conditions are good) there is variation in boats and models.
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Touring Kayak Paddles
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