TerrainCrate is a new range of pre-assembled, plastic dungeon, town and battlefield scenery that's ready to go right from the box and straight onto your tabletop. We'll have more details soon, so don't miss out!
You can sign up for a newsletter which will inform you of any and all developments over at :http://www.manticgames.com/terraincrate.html
This looks like it could be very interesting for Dungeon Saga and in turn HeroQuest