ok guys and gals, i need to get a gps to fing the cover i am going to put out, i have a old finder at the helm that i need to replace aswell, can i get a good combo for a reasonable price? is a cheap one good enough? let me know what to look for or just get a handheld and a good depthfinder or a combo. i would like to stay in the 4 to 6 hundred range for both. is that possible. thanks