Hi Ed,
One of the reasons a RR layout never seems to be finished is because that 'vision thing' keeps changing as time passes by. You will see many folks who have finished the benchwork and laid track, but never get to the scenery because they are more interested in RR operations then they are in completing the layout.
You have an excellent start, now comes that 'vision thing'. You bought a bunch of stuff, I'm sure, because you could invision it on your layout. So take some large lined graph paper, or use a PC graphics program, and lay out your benchwork keeping it generally to scale. Next divide your layout into sections or areas. It appears from your initial layout that you want a continuous run that can be single track or dual track so you can operate mutiple trains going in different directions. You have two end areas on your layout that will provide loop backs for continous loops. If desired, you can use switches and make one or both the main tracks into reverse loops. Perhaps you want a staging yard. Either one of those thinner longer areas of your layout would handle a small staging yard. Perhaps the other of those long, thin sections could be what is called a 'time saver' with scattered small industries for incoming and outgoing rail deliveries. On those other two bulbus areas, perhaps one could support a turntable, roundhouse and steam/diesel maintenance facilities. On the other, perhaps some mountains with with either a saw mill complex or mine operations.
The point is to plan out what you want your layout to look like and then sketch it out to make sure whether it will all fit or not. If not then buy a bigger house with a bigger train room - not really <BG> You have obviously seen a lot of layouts on the web and perhaps certain ideas you would like to have on your own layout. As everthing has a footprint you should be able to sketch something out to see what fits and what doesn't. A saw mill can be 3' X 5' on the large size or 1' X 2' or less for a smaller version. Same with an ore mine.
I'll sign off for now and let you develp that 'vision thing'. Good luck.
Trent Mulkern
Mechanicsville, MD
, i took my sons and a couple of his friends to the Philadelphia trian show and i've soooo hoocked it's not even funny. I've managed to pick up a ton of stuff on ebay and am poking around down in t he basement until i can refinish the attic for my train room in the summer. 
