My finished basement where the trains will go already has "can lights" (recessed fixtures) in the ceiling. They take typical BR30 size bulbs, which are readily available in LED types. We also have the same fixtures upstairs in the kitchen and adjacent dining areas. I changed them all out to dimmable LED bulbs (Make sure to check for "dimmable" on the box!) and installed LED-compatible dimmers in place of the regular wall switches. Recessed fixtures with the right lamps in them can give you plenty of light without a lot of visible glare.
For a layout room, this is just an LED-based re-work of the tried-and-true method of can lights or track lights with dimmers -- with the added benefit of less power consumption and a lot less heat. With their low current draw, you can control considerably more LED lamps from one or two dimmers which means that retrofitting most on/off light switch installations can be a 1-for-1 swap to dimmers; no need to split the lamp load to accommodate dimmer capacity in most cases. (And for installs that use a pair of three-way switches, there are dimmers that can be wired for those circuits.
I use these dimmers, usually available at the typical big-box home stores. They may not look as modern as some of the others, but the switch and dimmer components are very reliable and long-lasting; they tend to show up in a lot of commercial installations with heavy usage. You've probably seen them a million times in offices and commercial buildings. They'll work with any kind of dimmable lamp, but are geared toward LEDs and compact fluorescent types.
On the other hand, there are also ones that can connect to your smartphone/tablet for remote control, if you prefer that kind of setup.