As an owner of quite a few diffrent laser-cut Western houses from Sarissa, GameCraft, 4Ground and Battleflags here's my opinions.
As a first buy I would strongly recommend the Street with no Name kit from Battle-Flags. While In my opinion their other stuff is a bit on the expensive side this deal is really worth it. You get four medium sized buildings small enough to be just an other house and detailed enough to represent some more noticeable establishment with the right sign added. Also with only £5 battle-flag offer cheap international shipping.
For variety I've got western houses from Sarissa (my first buy), outhouses and wagons (a superb add-on for the table) from 4Ground (availible in my LGS). A good thing with these three producers are that they match up perfectly color- and size vise.
Also if you don't want to paint or not want to paint more than a few details i would advice strongly against GameCraft, the use a yellowish MDF which looks a bit of. Also GameCraft-stuff have a bit smaller details (ex. doorways and the wallplanks) than the other mentioned ranges. That said their stuff are well done and really nice as long as you bother to paint it.
