I'm having a really tough time trying to decide which of the above detectors to get. I dig a lot of pull tabs with my Compadre, because I'm after GOLD jewelry. However, sometimes I would like to just shoot for coins, mainly silver ones, because I get wore out digging bucket loads of pull tabs and other trash or the situation dictates that I should not be digging so many holes in all that pretty grass. I want some really good depth in the decimation mode to get to some old silver coins, but still be able to use the detector for gold hunting. I read that the F5 can be set to ring a high tone on a nickle, dime and quarters. Can the the Gamma and Omega include the nickle in the high tone with the dime and quarter as well? Would the F5's thresh hold control make it better on gold? I really like the screen and layout on the Gamma. Should I get the Omega or F5, because they offer something that I might need that the Gamma doesn't offer. Again, I really like the screen layout of the Gamma. I can buy a F5 for less than a Gamma. Which company offers the best accessory coils for a good price? I saw a special where Fisher was offering their 11" DD and 5" DD coils for $75 each. I think I need or want a DD coil for coin shooting. Or do I???????? Are these even good choices for what I want? Are there better choices?