Hi Roger . . . regarding the choice of detector, I won't recommend any specific brands or models (because I've only used one) but I will give you my experience by telling you what I did. Not because it was right or wrong, I'll just pass on my experience and you can do with the information what you will.
So about two years ago give or take, I jumped into the hobby by purchasing a White's V3i, which in retrospect was kind of like putting a 5.7 liter Hemi into a 1976 Chevette. The detector itself was WAY more machine than I needed or even knew how to handle as a beginner. I tried to use it a few times, got completely overwhelmed, and put it away for almost a year and a half and basically quit the hobby out of sheer frustration, because I was having zero success.
Then about two months ago I dug it out again--but this time, I did my homework first. I found a great place near my house to practice (a really large but trash-filled public park next to a boat ramp) and I dug everything I found for about three weeks. I learned what the green / red / blue bars meant, read articles about VDI, kept a book of notes, learned about Polarity Plotting and Sizing Grids, read a few books on detecting, basically absorbed myself in it. Two months later I'm having a blast, and this past weekend I dug almost 80 coins (including 9 from the 50s and 60s) out of a local park and playground in 4 hours. And now that I know the detector better, I'm actually able to visit places that are absolutely hammered by other people and still do well.
So what's my point? That you can either get a really complex detector to start, or a really simple one. Bottom line if you're not willing to fail for a month straight right out of the gate, get something simple. But if you're ready to immerse yourself in the hobby thru reading, experimenting and really going hard those first few months, get something more complicated. For me, in retrospect I'd probably do it the same all over again, for no other reason than my machine feels like a magic wand now that I know what I'm doing.
Your call, but either way good luck!