Heh, do u really need 2? 1 of those is pretty awesome, u planning to run games in 2500x1600 maxed out?!? otherwise it's a total overkill, not to mention your CPU might bottleneck the card.
Since he is getting it anyway, the possibity of a bottleneck doesn't matter as it will still run as much as teh CPU can handle no matter what he decides.
But keep in mind, most games are only limited by the GPU, so its not really relevant to say that CPU would bottleneck.