Everyone, please. No enormous third-party publisher or developer (Valve, Square Enix, Rockstar, any of them) is going to be willing to be bought and forced into platform exclusivity.

Their best bet is a studio that already makes only PlayStation games, with perhaps the odd multiplatform. Insomniac wouldn't be a bad choice. Sucker Punch would also be good. I would say Ready at Dawn, but they can't really develop anywhere other than PSV anyway

Hopefullh its a Japanese Company, SONY should be aiming to get a few of these.

The more studios they own and can make money from the better. One day they might leave the console business and have lots of very profitable software companies to fall back on.

There would be only 2 game companies worth buying for Sony, Valve, to get Steam and Epic to get the Epic engine and Gears of War. And people who say the companies in question would refuse to get forced into platform exclusivity are wrong, pay people enough money and they stop caring about cross platform development.

That said, I am not sure they would want Epic, because even if getting the Engine and 'fixing' it to work properly for the PS3 is valuable, once Sony owes it that might dissuade other companies from licensing it. Gears of War switching to PS3 exclusivity might be a nice win for Sony though. That said I think the total price of Epic would be higher than the value to Sony in the end, so I doubt they go for this one.

Valve is a much better proposition. They can merge Steam and PSN and get a great cross platform gaming network. They get some nice IP like Half-Life, Portal and Left4Dead. The main gain here would be steam, I think Sony probably feels overexposed on the game development front anyway, and they don't want to have such a big team of 1st party studios that they scare away 3rd party support.

in a business point of view thats a good idea

Like I arleady posted Gabe would never sell Valve 

He may have no option you know.

"A hostile takeover allows a suitor to take over a target company whose management is unwilling to agree to a merger or takeover. A takeover is considered "hostile" if the target company's board rejects the offer, but the bidder continues to pursue it, or the bidder makes the offer directly after having announced its firm intention to make an offer."

exept that Valve is a privately owned company and Gabe owns half of it, there is no board and there are no shares to buy.

man i hope Sucker Punch & Quantic...but you never know...Insomniac worked exclusive for Sony more than 10 years and now they going multi...

Like someone has said in this thread, Sony already have a massive first party. They own 15 studios currently. I think they will probably buy some "behind the scenes" sort of companies that have technologies Sony are interested in.