I wouldn't recommend it. Assuming the average viewing distance of 3 feet, it is fairly easy to see the difference between 1080p and 1440p. 720p will not only make text illegible, it will also make your videos and games look washed out and pixelated. 720p resolution is good under two conditions, long distance viewing on large screen size or short distance viewing on a small screen size, but it is not suitable for short distance viewing on a large screen size. The closer you sit to the monitor, the more adverse the effects of (low resolution - large screen) setup will become. Go for a 23 inch 1080p or 1440p monitor.