I would not buy this, I bought the exact one a few years back as a family computer, after a few months, shuts off because it over heats, look up reviews man, the air vents are on the top and air can't circulate so it shut's itself off and you have to wait like 20 mins to turn it back on and it goes off again, unless you got a fan on top of it.
Well I think your choice is good enough. If you don't want Dell you can purchase this computer also. Only one thing I would like to suggest you that whenever you purchase your computer you also purchase monitor arm for your LCD as I recently purchased it from Complement ltd. They are manufacturing various accessories like cpu holder, laptop holder, pen tray etc which increase the productivity as well as saves extra space in the room. monitor arm