I recently built a set of simple but nice backgrounds. These can be used for websites, wallpaper and even textures. I included the PSD along with 6 different images.
I recently had the opportunity to snap pictures of some very old steel with paint peeling off. I have always liked taking pictures of old structures. I think stuff like this makes for great textures!
Here is a set of high resolution brushes I made for a custom background I built a while back. Nothing special but they can look cool with the right effects.
Here is a set of 5 different horse brushes. All are high-res and look great! I used a dark brown in the preview shots below.