[Shakespeare]

I'm going for a Lowrance vertical Elite. Depending on the features, they can be had MSRP model 3X $99 to model 4 $249.
http://www.lowrance.com/en-US/Products/Paddlesports/

These guys are in ocean Isle and I've bought a few things from them. Great customer service! http://www.thegpsstore.com/Default.aspx