Tekton Design - very good efficiency, great reviews...
I would look for a pair of Klipsch Forte I or Forte II ... perfect for a vintage/nostalgia system. Another good one (and this speaker I own) is the Epicure 20+. Awesome in a vintage set-up, semi omni directional so no "sweet spot, deep bass, smooth highs even with old solid state gear. Hard to find though.