Just saw this: http://www.anyrail.com/index_en.html
You can download a sample, good for 50 sections of track.
I played with it just a little and liked how it worked. It’s a bit cheaper than RR-Track or 3d Planit. It doesn’t have all the switch manufacturers for “G”, but it could be nice for those starting out.
I’m going to pass since my layout is pretty much complete, but those still planning may want to try it.