I own the box copies luckily..
gog rocks though, they sometimes fix stuff in patches for Win 7/8 compat..
(Some 'user' somehow hacked(in a GOOD way) the EXE for Thief 2, and made it compatible with Windows 7 and 8 too. AND increased frame rates, and polygons by 40000! Just crazy... Can't wait to test it out.
Fallout is a classic! Anyone that has never played, go give it 3 hrs... ignore the old graphics and focus on gameplay and story. You'll LOVE it.