If you are considering wallpaper, perhaps take a look at this as another option. Ixxi offer a system whereby you can create your own stunning collage, enlargement or ixxi pixel. It involves attaching individual photos cards (made of high grade synthetic matte paper) to one another using the x's and i's included in the kit supplied. Using their online module you simply upload your favourite image(s) or choose one from their imagebank. They are based in the Netherlands but ship worldwide. The difficult part appears to be choosing your image!