|Unless you want to be able to have more than 4GB of RAM I would say there is little point changing your OS.|
I bought the 64bit version of Vista Home Premium purely so as not to have the memory limitation.
Unless you are running a server or are doing something that requires the extra performance of 64bit (CAD work or something) it's not needed. Even some of the built in 64bit apps are nothing special. I.e. 64bit Internet Exporer - useless as Adobe don't have a 64bit flash plugin which makes a lot of the net unviewable.
There still isn't much software about that makes use of 64bit hardware.
However, I do notice you are running Windows 7 RC1.
Did you download the 64bit version of that. You could always try that if you're not already. I'm running it and currently think it's much better than any previous version of Windows so far. I love it. :)
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