The fink project has started to fill the 10.3 stable and unstable tree with the ports already prepared in the 10.2-gcc3.3 tree. All the stable ports are available as binaries as well (via apt-get). This means, that there will be a long list of ported UNIX apps available once Mac OS X 10.3 ships.
You need to update your fink installation via fink selfupdate-cvs or fink selfupdate-rsync in order to get the new packages and change the distribution identifier in /etc/fink.conf to „10.3“ to get the new packages.