Well everyone is telling you their favorite. It really is what you prefer to use. All have flaws and pluses. I use a really cheap one and do just as good as others, and those with $2000 ones aren't really doing that much better. I use Bounty Hunter Quick Silver, it has an LCD screen and only 3 buttons, quick and easy to use $169
Also the garrett ACE 250, it has a built in pinpointer but its also heavy $212, but whatever you get I highly recommend getting a White's Bullseye II pinpointer. That thing is incredible, you can get them for $79