Unstable

[Jonathan Andrews <jon@jonshouse.co.uk>]

Debian newbie question.

If Unstable is more up to date than stable can I/how do I switch apt to
update from the newer archive ?

I'm after later sparc builds of Gnome-libs and kde-libs etc... or do I
need to build them myself from source - after building gcc ? 

Also from people who have done this how architecture neutral are the
gnome-lib & kdelib sources ? Is it likely I can build a new fangled
desktop from the bottom up or will I be in for tracking down obscure
porting bugs as well as dependency. I can cope with difficult compiles,
but I'm probably not up to fixing source bugs.

Thanks,
Jon