Build a $550 bare-bones gaming PC Summary: Excellent question in today's hardware 2.0 mailbag:I want to upgrade my existing PC so it's able to play the latest games. What upgrades do you recommend? By the way, I'm on a budget of about $600 ...Let's take a look! By Adrian Kingsley-Hughes | January 26, 2010 -- 12:14 GMT (04:14 PST) Follow @the_pc_doc Previous | Next Image 1 of 6 Topics: Hardware, Mobility, Processors, Samsung Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.