Frameset Or Include Files

I'm going to revamp an intranet for a company... which need further maintanence in the future but I got a doubt.Should I use Include Files method or Frameset Method to design?

If use frameset ,the design has 2 frames which are a top frame and bottom frame and the critical(other programmer could add and delete links in the future) links are all in bottom frames. If use table ,only have to include files on the 1st row & 2nd row.Which is better to maintain ?