Go to Kelleyco on line; I highly recomend the Garrett Ace Pro, it is well worth it, it has the depth to get you below the trash line the good features, and it can grow with your knowledge.
If you are serious with the Hobby- You will not be wanting to buy another after about 60 days, I did not do that, and I regreted it after about 2 months of use, I should have went with the At Pro first and not wasted my money on the first detector I did buy.
It Has versility and is easy to operate. Very well worth it. Stay with the 8in coil to start, then you can add coils later. Go with the Garrett Pro Pointer also, that would give you the best package to start off with.
Hope this helps
twoauers