Bottom Line Fish Finders 

& 

Cannon Downriggers!

Affordable electric downriggers like the Mini Mag and Magnum 10 (workhorse of the Great Lakes) make trolling with downriggers a pleasant experience.
Mini Mag The electric downrigger for small boats. The portable Mini-Mag is the perfect alternative for occasions that don't warrant a full size downrigger.
Uni Troll Get the biggest bang for your buck! You get a downrigger with a low-profile swivel base and telescopic boom to boot, all in one package.