But some good news: we have x86_64 builds of Modeller in house. Not only
will they load the 'proper' 64-bit Python (at least, they do under RH
Enterprise 4, which I think is pretty similar to FC3) but they run
faster than the 32-bit binaries (significantly faster for some parts of
the code, such as profile building).
There is an experimental x86_64 build now available for those that want
it, at