I am looking to replace the finder in My bayhunter and could do with some help.My fishing is 75% inshore .My budget is around $450.The sounder needs to be easy to operate,preferably 5" screen, I'd rather a good black and white than an average colour,I don't need a heap of features that I will never use. A few that have caught my eye are- Furuno ls4100,Lowrance X125,Eagle 480,garmin 300c . Sorry I know this topic has probably been done to death but your help is apprieciated. cheers Brett