Roadrunner, here are a few more tips to help a new guy out with gold prospecting/coin hunting. The Minelab X-terra705 is the most technologically advanced VLF detector on the market and has been since 2009. With the 705 you have the ability to switch coils and at the same time switch frequencies. 3.5 Khz, for silver and copper. It is killer on deep silver, as well as copper. The 7.5 Khz is the medium frequency coil, good for all around detecting. 17.75 Khz coil is for gold nuggets, and hunting in high trash areas. It will give you excellent target separation. It comes in DD (double d). The 705 is automatic ground balance, manual ground balance, ground balance tracking, ground balance tracking offset and beach mode. It is the best adventure detector and is an advanced nugget detector, coin hunter, beach detector or relic hunter. It will find nuggets just under 1 grain is weight same as the gold bugs, but the 705 will find it deeper. The ground balance offset is for mineralized ground, hotrocks and wet beach sand detecting. If you have alot of hotrocks where you hunt like iron stone, you can offset the ground balance to either a negative or positive value. This is very important because it will keep you from alot of hotrocks. It makes most of them go away. You have two modes to hunt in, coin/treasure and prospecting mode. You will not be able to find a nugget in coin mode unless it is large. The prospecting mode is like having a completely different detector. It is so powerful it will pick up the salt content in your body just like the goldbug. I have owned and operated many detectors over the years as far back as 1980 and I assure you that no detectors compare to minelab. Garretts are good detectors but you will not find as tiny of gold with them as you will with minelab. White's, well alot of people like them and have good luck with them, but truth of the matter is they are bulky, difficult to learn(learning curve) and their lcd screens are complicated and busy. White's are heavy and after awhile you will get tired of wielding them around. Better to get a light machine that you can wield all day if you want to. Their customer service on repairs is not to be desired. They have been using the same design, metal box for decades. the club I belong too in North west Montana, some members had them, could not figure them out really well and all of them sold them and bought minelabs or goldbugs. You will want a detector that has auto ground balance and auto tracking. This is very very important when looking for gold nuggets, because most areas you will be looking for gold will be highly mineralized ground with various types of hotrocks. No othe manufacturermakes a detector in which you can change frequencies by changing the coil. This makes your detector a valueble and versatle machine. Go to finds treasure mall and go into the X-terra forum and ask them some hard questions on how x-terra owners like them and what they have found as well as x-terras ease of operating. Don't be fooled into buying a used inexpensive or older detector to hunt nuggets and coins with till you can get a better one. You will be wasteing you money. I did just that three times in a row before I descovered minelab and eventually the 705. You will never out grow the capabilities of the 705. It is easy to use and a joy to learn all of its features. I found gold nuggets the very first day I bought mine. You are better off and be ahead of the game to saveyour money and buy the 705 for around $600-$700. Get a high frequency coil and a low frequency coil. You will need a good quality detector pick that you can pick up at Arizona Outback. Get the long handle pick. It will be easier on your back and help you dig faster holes. Tesoro detectors are very specific use detectors. They dont make one that is very good for gold nuggets as well as coins and relics. You will need a plastic scoop for when you are hunting for nuggets. Pick up a camelback hydration bladder/backpack to keep you hydrated. Especially in Arizona. I have been detecting for coins and gold nuggets since 1980 and I have done it all damn near from detecting, panning,sluicing,sniping, dredging and booming.It is all fun but unless you have a very good spot you wont find lots of gold. detecting will be the most rewarding of all ways to mine. Sometimes you wont find anything for days detecting, but when you do it usually is more rewarding for the amount of work and money you invest. One more thing, I would give up detecting before I would ever waste my money on a white's detector! Sorry if that offends others out there that own them, but to me quality, the most technologically advanced detectors, customer service, weight, ease of use, ease of learning the machine matter to me in order to be successful. you get what you pay for. Those that owned other detectors and then bought minelabs know these are the best on the market and have been for years. I hope this has been helpful roadrunner. I would really like you to become successful at detecting. It will change and enrich your life forever. Good luck - Goldseeker4000