Sounds like you've started out right! I also plan to begin construction this spring with a large oval sized layout. I started this winter building the storage area in my garage first. That extends through two rooms and will lead outside the back of the garage. Stay within your budget. I turned on to G scale about 9 years ago but I unfortunately have had one too many starts and stops with G scale. Now starting (again) and will stay within a budget I can afford. G scale is not all that confusing once you get around it a bit. I only have Aristocraft products right now (1:29). USAT will be added as the budget allows but the layout will be 1:29 only. You indicated you are going DC power. There are two other options as well DCC and battery r/c. Right now my indoor tracks are DC for convenience, testing, etc but I will eventually convert all the battery R/c using Li-On battery power, QSI sound and G Wire for Air Wire wireless control. WELCOME