Tricky thing with textures is that they come in endless varieties in terms of color and look. Finding something online may be easy, but finding the perfect match could be slightly harder, especially seamless ones.
A while back, a discussion came up (thread 5778) about using some basic patterns and add color (e.g. with the Gimp: Colors-Colorize). There are some examples in SF 3D models 351 (and 374). And there are several websites for playing with different color palettes, matching and conversion. Added a couple
of small, generic textures as illustration: 351 in case they can be of use.
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