> Running the 64-bit release is also an option, of course but it's not
> unusual to get a 32-bit only DVD or CD from magazines that ship openSUSE
> as a free DVD.
The openSUSE Box (which is a commercially packaged version of openSUSE + extensions such as extra codes and some closed applications) also offers a biarch installation image, which will automatically pick the most suitable architecture.
(disclaimer: I'm working for the company productising and selling this box)