Thought you might be curious to see my first attempt at a custom tileset:

http://i279.photobucket.com/albums/kk146/TheMagicianFromOblivion/templeTileset01.png
http://i279.photobucket.com/albums/kk146/TheMagicianFromOblivion/templeTileset02.png

Textures are courtesy Valisarius. (Where did you find all these great textures, anyways? )

Collision works so you can't fall through floors or walk through walls, but I only have a basic wall piece and corner piece, so far. Textures will have to be tweaked and collision tested a little more thoroughly. Snap to grid works fine as I'm using standard sizes.

Let me know what you think.

Excellent. I spent days searching for those textures. The best place to get mosaics is to look at classical mosaic makers. The rest was just searching one after another texture site.