On Wed, 25 Feb 2009 22:09:59 -0600, Vic Smith
wrote:

Probably want a forward looking sounder too, if there is such a thing.

Forward looking sounders exist but mostly for big boats, and the
reviews are mixed even there.

And a go-slow attitude where appropriate.

That's the real answer. When you go agound at speed you can end up
high and dry.

For an inexpensive chartplotter with tide information, check out a
used Garmin 182 or 182C on EBAY. I have a 182 at the lower helm that
came with the boat and it's a decent unit. One of my neighbors bought
a 182C (color) and he likes it. For a small boat try to get one
with the built in antenna.