Which one of these computers could run DayZ, Civ 5, and others?

My gaming PC was completely destroyed not too long ago, and now I'm just wanting a computer that can play the games I bought such as the ones listed in the title. I'm not looking to run the games in ultra high settings, just about medium. My limit is $350
So, which of these would be the best buy? Also, please state if I could possibly upgrade it later.

http://www.walmart.com/...d/33846063

http://www.walmart.com/...d/40099999

http://www.walmart.com/...D/37670683

http://www.walmart.com/...d/39457142

http://www.walmart.com/...1/36998827

You won't get a pc under $350 and play intense games at ultra high settings. I hope this is a troll question. (Didn't even look at the links)