64 bit or 32 bit?

Hi, I've just bought Windows 7 Premium Full Edition to install on my new PC. I'm going to be using it for gaming and some work with Office 2007. What version should I install, 32 or 64 bit?

Core i5-750
GA-P55-UD2
4GB DDR3 XMS3 1600MHz
Sapphire Ati Radeon 5770 Vapor-X

Thanks.

You have all the hardware to be able to run the x64 version.

It will make full use of your 4GB of RAM too.

Just be sure you have all the 64 bit drivers available for your motherboard and the Radeon Video card.

I would definitely install the Windows 7 x64 version. I use the x64 Pro version and love it.

64 bit is your best way to go, in order to take full advantage of your 4GB RAM. It's also better because 32 bit is already beginning to slowly sink. While it's true that there are still some on the market, waiting to be sold, there most likely won't be any regular PC's or laptops made in 32 bit. 64 bit is no longer the future, it is now.

I agree with bith posters above... I am also running x64 and loving it.