Dan - i currently have the Garmin E-trex Legend Cx very nice unit, lots of memory, but small screen - its uits me very fine for now for what i need it for
I think two of the better hand-held units out there right now for mapping are the Garmin Map 76cx (?) or Lowrance's new one ( i foget the model) both seem very comparablem, large screens, ect....
before you make a purchase take into account the available map software/chips & see what would suit you best, - though i guess nearly all your fishing is within one/two regions, that would be a little easier for you as opposed to us southern ontario folks who's fishing trips may take them to different " map regions".