Thank you for the warning, I guess it is to be seen what kind of hardware is there, once I get the PC.
My hope is that the XPS 8700 is not too different from XPS 8500 where the install of XP was possible...
I already did successfully installed Win XP 32 bit on Win 8 HP PC with UEFI Bios, but found too much hassle was needed to find the XP drivers, and since I was not too impressed by the design of the unit, so I returned it.
I hope I like the new XPS 8700 and will be able to customize to my taste. :-)