Re: Best flood not using 123\'s
Elektrolumens FT3C or Tri-Star Phazer are what you're looking for, then - heavy they may be, but they use commonly available C cells.
If you want a small light that'll make a small beam, then look at the StreamLight Junior Luxeon. Or maybe the XM-2 or XM-3 from Elektrolumens. If you want 'light up the yard', you will NEED much more energy than is available in an AA-cell.