We are team of few Delphi developers who have been using VSS since years (I know it\'s a pity), but we don\'t use any of the advanced features of VCS, so it was working fine
Our Delphi team recently (last year ) upgraded from VSS to Perforce which is an absolute joy to work with. It is expensive but is well worth it. It makes source code control one of the tools of your trade rather than a chore or a hinderance. It has good GUI tools, a great commandline when required and there is a free Delphi IDE integration available online.
It does take a bit of getting used to, but is worth putting in the effort when you get to the point where you can create branches with abandon and merge changes knowing you dont ever have to worry about losing any changes ever. Its fast, efficient and a pleasure to use.