Recently I have had several of my buddies ask me which model fishfinder I would recommend for their 2008 purchase.  My typical answer is, "it depends."  If you are looking to spend less than $500, the Garmin 340C is a nice model.  It has several options and a nice simple to use interface.  A good mid-range fishfinder that I occasionally recommend is the Northstar Explorer 467.  If you are looking for a fishfinder for over $1000, the Furuno FCV585 is a nice model.  One of the features that I like the most is the large, 8.4" display.  This fishfinder is loaded with the most options and latest digital technology so it deserves a good look.