Noob needs help!! Updated w/ new layout pics. So this is my first train set ever. I decided to go with a n scale mainly because I don't have a lot of room to set it up in. I have purchased a Bachmann Explorer set that has a 2' X 3' oval track. I have some plans for it, but I'm not looking to go wild with it with all of the buildings and grass and stuff. Mainly just looking for the track layout to play with. I change my mind way to much and to have something set up nice would just get on my nerves because I wouldn't be able to just pick it up and change it. But any way heres my question. Are all of the different name brand locos and cars around the same size and can be used with each other, or because I have the Bachmann ez track, I have to stick with all Bachmann stuff? Thanks for any input. Also below is a picture of the track I drew up that I plan to build first when it all gets here at the end of the week. What's in red will be elevated. Will be putting it on a 2 1/2' X 6' table.