I don't know whether it's legal and possible, but it would be nice to have a vista fonts package (consolas etc.). These fonts can be downloaded with some MS viewer, but there is a separate pack, see below:
I downloaded the pack from http://drnicwilliams.com/wp-content/uploads/2006/08/6_new_cleartype_fonts_longhorn.zip
They are very nice fonts indeed. But the licence of Windows Vista says you can use them only with their system.
for the record vista-fonts.ebuild is flying over the net and overlays.