Sounds interesting to be sure, I hope it works, however I'm aware of several similar things people have tried to do over the years, especially with PnP RPGs, and honestly I can't think of any that had met with massive success. It sounds like the kind of place a game fan would dream of running, but I'm not sure how financially viable it would be.
Mostly my thoughts are like this: your making a bar to cater to gamers, however playing console games in a truely public place tends to be annoying (I've tried it). Chances are even with co-op games and such I'd prefer to play at home. Gamers for the most part also tend to be nerds (though it's not universal) and not the most social people in the world, and nerds even tend to enrage each other. What's more gamers are generally pretty strapped for cash, because they spend it on games. The profitibility of a bar (or even maitnence of such) revolves on selling alcohol at marked up prices from what it would cost to buy and consume the same drink at home. So even if the ambience attracted nerds, how many of them would have the availible cash to buy enough drinks regularly to keep the place running?
I'm being a downer, but I kind of like Yahtzee, so I'm being honest. A lot of people have decided they wanted to do similar things as a dream, and cater to wargamers, or have non-stop networked computers going for people to play endless rounds of Quake on or whatever. It hasn't worked very well. Even the Baangs (I think I have the term right) and such in Korea are dying from what I hear, and they existed largely because there weren't many people with home computers, and as computer/console/whatever ownership increases their business decreases. In this case the gimmick is game consoles, which presumably the intended clientele already own so it's not going to be all that special.
Such are my thoughts, but I honestly do hope it works. I hope none of the people involved invest TOO heavily though, or go bankrupt trying to keep a sinking ship afloat if it turns out I'm right and things get bad when the novelty starts to die away.