So, whilst stumbling through the urban wasteland of the internet in the search for textures (for the Sims no less, don't knock it Georg, it gave me an idea of what UV unwrapping was and texture painting before i'd even heard of Maya) and came across this gem of a website that is too good not to share.
And the best thing is, it's all free:
"All royalty free stock icons, clip art, images, brushes, custom shapes, layer styles, layered PSD’s, patterns, textures, web elements, themes and other design resources on this website are free for use in both personal and commercial projects.
You may freely use them in software programs, iPhone skins, scrapbooking kits, web templates, Themeforest themes, websites, print on demand sites such as Zazzle, blogs, etc. No attribution or backlinks are required, but any form of spreading the word is always appreciated!
You may redistribute them within projects such as those listed above, but not by themselves as is."