paddleboards

So... this is not going to be wakesurf related but i figured this was the best spot for some input cause i know most of you know your way around most forms of surfing.

Here at texas state, us college kids love to float the river with tubs. But today I realized I have never seen anyone cruise this river on standup paddleboards before. How sick would that be.

So do any of you own paddleboards? Im really into the idea of getting one. But I know nothing of them? So does anyone have any suggestions on where to pick up a good deal on one of these? I have done a little digging on the net and have already realized this will not be cheap. So I guess i want to get some impute. Or better yet, are any of you selling a used paddle board by any chance?

Thanks.... please don't flame me