Anyone have experience with Windows 7, 64 bit on a Dell XPS M1330?

I am buying Windows 7 soon. I currently have Vista Ultimate, 32 bit. Should I install the 64 bit version of Windows 7? My Dell XPS M1330 laptop is capable of handling a 64 bit operating system, but I am concerned with the lack of drivers for Windows 7 on Dell's 'drivers and downloads' site. Windows 7, 32 bit drivers are scarce there, and 64 bit are non-existant. They do have both 32 and 64 bit drivers for Vista. I ran the Upgrade Advisor from Microsoft. It came up clean, but it did not offer anything concrete.
Anyone have any experiences to offer?
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Tom BeckAsked:
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In my experience in both installing and viewing recommendations on forums, I have found that if your OEM (Dell) does not list 64-bit drivers then you should stick with 32 bit.  However, the retail version of Windows 7 includes both 32 and 64bit so you can try either.  Also, you may be told by some that Vista drivers are the same as Windows 7 in which they are not.  Not all Vista drivers will work with Win7.  The upgrade test checks only that your computer will support Win7, not that you can find drivers.  If you are getting the retail version, you will have both to try.
Tom BeckAuthor Commented:
Dell does not have all the 32 bit drivers on their website for Windows 7 (they have just 3, but they are non-essential drivers).  Am I stuck with Vista?
In my experience, it recognizes most of the drivers. After the install, if you look at the device manager, you will see some hardware is not recognized, in that case what i did was, install the XP drivers, and they worked just fine. It was M1330, but I installed win 7 32 bit on it.
I would not say "stuck" with Vista but I would say you are at a gamble.  The thing is... if Dell does not list Win7 drivers for your computer and the individual component manufacturers do not either, then the devices were manufacturered to support a different operating system.  You can spend many days on dozens of forums and you will get the same answer.  The bottom like is that you will be taking a chance. Maybe it will work... maybe it will not.  This is why you have that little sticker on your computer that says "Desigend for...".  The component drivers depend on their manufacturers... not Dell.

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Tom BeckAuthor Commented:
Thanks for your input.
I think I will give it a go on a different hard drive.
This forum post says 'no problem' except for the finger print reader (which I don't have).
Here's a successful Windows 7, 32 bit install:
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