Looking for first side scan sonar unit......

[PyrateJim]

I'm looking at picking up a side-scan sonar unit for use up here in Michigan as well as in florida. Looking for something good to about 500fsw with good resolution. What do you use/own (name/model), how do you like it? If you could post some image scans along with the model you use that would help me out alot.

There's several nice one's out there, but I have no idea where to begin or what questions to ask.

Thanks, from a newbie.