you can find the u2711 on amazon.de for 540e. . The u2713's purpose was to bring a 27` economic ips monitor in the market , thats why it has inferior panel than 2711 .But for your casual use u wont see any difference that why i suggested u to go with the cheaper one. Dell is a very solid brand ( i own a 2312hm) and you will be very happy with either of them. Also if this is your first ips panel you will see a huge difference in colors and in viewing angle.
hf with whatever u choose