Need Some Electrical Expertice

[torikoos]

It looks to be just fine. As many have mentioned, just be sure to put in some form of protection to your layout (fuses) so that in the event of a derailment or whatever, the chances of something cooking are reduced. :-) A 5A supply is what I use to, but my layout is devided in sections each protected with a 1A fuse. The power supply is therefore strong enough to supply the layout with trains running at different spots of the layout, but each individual section has a 1A limit. For my current use that's more than enough, but if you run big heavy trains with multiple powered loco's, you may want to see what that train pulls in electrical current when running, and base your fuse sizes on that.