http://www.wizards.com/default.asp?x=dnd/fpm/archive
http://usuarios.multimania.es/recortaweb/
http://www.worldworksgames.com/store/index.php
http://www.haunteddimensions.raykeim.com/index301.html

I found these while looking at referring URLs on the dragon's tears site. I've not looked at them all in much depth but some look interesting (or amazing). Mixture of free and paid for here.

If anyone uses these or already has... post pictures so we can see them for real with your models

Some from me
(whole gothic houses)
http://www.haunteddimensions.raykeim.com/index301.html
http://www.stones-edges.com/freesamples
Rough orky like houses
http://www.zeitcom.com/majgen/30str.html
Small free section
http://www.fatdragongames.com/fdg_free.html
Mausoleam is free here everything else costs, I must admit I backed out in the end from buying it at 0.00 with 0.00 shipping but papercraft guys swear its good.
http://www.odissey-papermodels.com/hilands

Crates, tombs (v sexy) and a sci fi door (for space hulk etc)
http://www.stones-edges.com/freesamples

(you already listed)
http://www.wizards.com/default.asp?x=dnd/fpm/archive