Yet again you should just go AMD as you can buy the Jaguar based mini-PCs for cheaper, and since those are based on the same cores as the PS4 and XBone if you care any about gaming the coming games should be optimized for it.
And while we are on the subject of Jaguar and AMD since XP is about to EOL? Please please PLEASE get rid of those damned P4s already, okay? If there was a list of "world's dumbest computing ideas" I'd have to put that one at the top, it was slow, sucked insane amounts of power, and because of the crazy long pipelines one cache miss and it would slam on the brakes. The only thing worse was the Netburst Celeron as the teeny tiny cache made misses all but guaranteed.
What does that have to do with AMD and Jaguar? Simple the Bobcat, which the jag was based on can be had for just $65 so for less than $100 you can turn any power pig P4 into a MUCH nicer dual core PC capable of 1080P over HDMI. Simply pick up a PCI to IDE adapter so you can keep the original drives and tada! Dirt cheap upgrade.
One final note...why is everybody making such a big whoop over ChromeOS? We had this in the 90s folks, its called a "thin client" only frankly the 90s ones were better as they weren't controlled by a single company with STASI levels of information about their clients and whom may or may not be connected with the NSA. Hell even if they tell the NSA to fuck off they still consider you to be the PRODUCT and the advertisers the customers so its not like they have your best interests at heart. And do they still TiVo the shit out of them with UEFI? Funny how many here say "Oh M$ is teh evil!" yet I can take any Windows 8.1 laptop and be booting the instaler of anything from BSD to ReactOS in a couple minutes but last I looked the ChromeOS devices were so locked down the ONLY things you could run ere CERTAIN Linux distros and ONLY those that had the hacked loaders...shit, how is turning X86 into a game console NOT evil? Because that is what they did,they took the most standards compliant universal hardware on the planet and turned it into the original Xbox, where you gotta hack the thing just to run a limited amount of software.