I'm a decade-plus member on the traditional/O27 side of model railroading. As a kid, though I had some HO (that my dad set up for me). In cleaning out our recently-deceased parents' house, we stumbled upon my old HO trains. Since I've got more O Gauge than I'll ever need, I gave the HO equipment to my sister and brother-in-law. They now have 3 engines with rolling stock, a trolley, and enough buildings for a 4x8 layout but need new track and transformers.
I know nothing about HO, but I'm guessing there are varying quality and pricing levels as in O.
Any recommendations? How about a good hobby/train store in the Woodlands area of Houston where they live?