Hi everybody, first post here. I'm laying out a train room for my 2 boys (ages 6 & 9), as well as myself. Around the ceiling, I'm putting up an around the room shelf layout w/ their 2 lionel OGauge trains. Along the floor, around the perimeter of the room, I wanted to add a layout the kids could actually play with. I first planned on putting in an OGauge switcher setup that would cover 3 of the four walls. The 027 turns were to be in two opposing corners of the room- to take up the least amount of space. Problem is, the o27 is taking up a little too much room (the rooms 9x9). I don't have anything against HO scale, but it may be too small for the 6 yr old. I also wanted some operating accessories to keep the kids interested. I'm now looking at S gauge. Can any of you tell me what the minimum turning radius is for S gauge? I also welcome more experienced opinions re: the setup as well and any kid friendly advice. Thanks, look forward to hearing from you.