For those of you out there that are in to making models or segments for FPS Creator, here are some sites that offer a large variety of free textures. http://mayang.com/textures/
-This site is, in my opinion, one of the best free texture sites on the net. Their textures are large and many are high quality.
http://www.freetextures.org/
-Again, this site offers large, high quality textures.
I will update this thread as I find new sites. If anyone has any texture requests, just ask here and I'll do what I can.