I just re-kindled my childhood love affair with o-gauge trains a few weeks ago. I found SCARM two weeks ago and instantly fell in love. I'm a Mechanical Engineer with lots of CAD experience, so the "cockpit" of SCARM was very comfortable to me.
I like the suggestion made on another SCARM thread to be able to use "shift" to select all tracks between two points. That would be helpful in layouts where I have a bunch of smaller sections.
Also, I would love it if there were some building libraries. I know that adds complexity, so for starters, could we just have a collection available to download? My dad has already started modelling some of the popular Lionel pieces (Gateman and Station). Could there be a section on the blog for folks to submit those files?