[nod32 anti-virus 64bit]

And about installing nod32 and seeing if it finds threats, well I've already tried nod32 several times along with others. But they never find threats anyways since I don't go downloading weird stuff or getting viruses.

Yeah I haven't seen a virus in a couple years at least. If you know what your doing on the Internet, it's 90% of the battle.

[nod32 anti-virus 64bit]

I hate to say it as I'm new here but that is a load of BS. I've been running NOD32 for a while now on my 64 bit installation with no slowdown whatsoever.

That's like saying, "I don't know what the problem is - works on my box". 99% of A/V installations work fine, but for the 1% that do not, the big three are the worst - NOD32, McAfee, and Symantec. Just because you have no problems doesn't mean others won't.

I'm not saying NOD32 will work with all installations flawlessly but your original post is implying to me that NOD32 is bloated (a system resource hog) along the lines of the Norton suite and McAfee. If that's what you mean I beg to differ because I have tried all those products and it's certainly the lightest.

[nod32 anti-virus 64bit]

I don't like to do this, but I'll bust out my "credibility" stick - I work for MS Support at the highest levels in Core OS platform support, and I can tell you that NOD32 uses almost as much memory as the absolute worst, McAfee 8 (although SAV 9.x and older are right behind - SAV10 with the latest update runs entirely in paged pool, which is much better). NOD32 installations can have serious issues in nonpaged pool usage on "power-user" and server-class systems, that to my knowledge have not been fixed for quite some time.

It should be OK on a 64bit system (where nonpaged pool is now 128GB rather than 256MB or 128MB), but it's still not a very well-written product, memory-wise.

And yes, it does install to "program files (x86)" by default, meaning it's still a 32bit application.

I hate to say it as I'm new here but that is a load of BS. I've been running NOD32 for a while now on my 64 bit installation with no slowdown whatsoever. In fact, I wouldn't even know it's running minus the icon in my system tray. If any of you check out planetamd64 I'm sure you'll find similar opinions.

[GUI Enhancers for x64?]

StyleXP supposedly works with it. It may be beta though I'm not sure.

[Windows XP Pro, Windows XP pro 64 or Small Business Server 2003]

I've been using the 64 bit XP for months now and no gripes whatsoever. If all your hardware is supported and you are prepared it should be a great experience. The ones who run into trouble usually didn't do their research.