This is a simple oval HO scale layout made by me for a client.
The track is analog, Piko A-track system.
Everything except the track is built from scratch including the catenary.
Here are the pictures of the whole building process:

I forgot to add the videos of the layout
Here they are:
http://vbox7.com/play:6d03edadb0
http://vbox7.com/play:f6e049d027
http://vbox7.com/play:6a4b1c9558
http://vbox7.com/play:e1e33bd18a