SF Alpha textures

I've been looking for alpha channel science fiction themed window or viewport textures as well as any walls or bulkheads that may go with them. They don't need to be full perm.

I've found plenty of free game oriented science fiction textures on the web, but no large window areas with just a bit of supporting struts or bracing here and there.

Thanks.

many scify textures in sl are actually from (or also in) the Halflife1 Modification "Natural Selection"
http://www.unknownworlds.com/ns/download/

I do not know why they barely uploaded its window-textures.
They must have been too lazy to convert the .wad files and fix their "pink FF00FF alpha layer" transparency to add some "32bit alpha layer" glass to it.

Other HL or HL2 mods have nice textures for free, too.
.wad converters are plenty.

so please, someone do us that favour...