Hi and welcome back!
I am nto as old nor do I have grandchildren, but I got back into the hobby about 5.5-6 years ago. I had O-O/27 as a kid/teen and N scale as a teen.
This time I wanted HO. I always wanted HO.
First Atlas code 83 track that is Nickel Silver is good track and the most common and cheaper, though some will swear by it's more expensive cousins.
Just be sure not to get any steel track! They may look the same, but performance is hardly the same!!!
One thing you have to consider that didn't exist a long time ago is do you want standard DC operation of the New DCC {Digital Command COntrol} operation? DC controls the electrical current to the track blocks to control the engines, while the DCC system sends digital computer packets to the individual locomotive to control just IT on the tracks instead. WHen I first jumped back in I went DC as I knew it, then I discovered DCC and decided to switch to it for fewer wiring hassels, little/few/no blocks needed {at least not for my small layout} and I could get away with just connecting 2 wires to my small layout!!! and COntrol up to 3 locos with
one controller!!! I liked that and promptly ordered the Bachmann EZ COmmand DCC controller and some Bachmann DCC OnBorad Locos to go with it.{now the Bachmann EZ C is a limited unit, but there are other unitsa vailable like Digitrax Xtra and NCE Powercab} I haven't looked back except to add a few feeder wires to the original 2 to be sure of signal continuity. IN my defense, I have no shorting spots like reverse loops or wyes, so 2 wires for it can work. SOmething to think about.
Here is a tutorial if you will to help explain:
http://www.tonystrains.com/tonystips.htm
You have quite a sizeable shed to set up shop in. One thing to consider...is it insulated? finished off? *electrically wired well* to handle electrical demands of a layout?{train power, lights, A/C unit. Lights for layout, etc} is it climate controlled so
YOU will be as comfortable as the trains? {don't want buckling track due to excessive heat} Is it in great shape or in need of repairs? new roof? Better windows? More windows for ventilation or Window A/Cs? How about a natural gas or propane wall heater set on low to keep temperate during winter? How about dust and dirt? does it attract a lot? Will the door keep the wife at bay whilest you work???!!!
Just food for thought,
Welcome again and have a great time in the hobby!
