Opinions/experience wanted - Windows Vista 64 bit versions - compatibility.

I have ordered a new PC online and have specified that it should come with Vista Ultimate 64 Bit edition.

Obviously the hardware will be compatible because the suppliers won’t let you specify a build where any of it’s parts conflict. And it’s all the latest stuff anyway…

But are there any issues of compatibility with VU64 and software such as Games Office Apps, Software Engineering Apps (Such as Borland’s Builder Pro 6)

Any Users here of VU64 had any issues that I should be aware of?
I have mainly specified it because of the amount of Memory it allows you to have in your system. but I am assuming it will take advantage of the 64bit nature of the processor and other hardware…

Nobody?
(ok I won’t bump this a second time. I just thought there’d be someone out there with experience of windows vista 64 bit versions)