Hi,
FreeSurfer has recently announced a new version (5.1.0) where they've finally sorted out the license issues after several years.
We don't have packages built for it yet, but will be looking at it very soon (in conjunction with the neurodebian team) to replace the semi-working 4.5.0 packages we have now.
Release notes can be found at:
http://surfer.nmr.mgh.harvard.edu/fswiki/ReleaseNotes
Thanks,
Mark