If you want some try your local electronics store. I got some from Jaycar (Australia).
matthew
Note: if you are planning to fit 2500mAhr Energizer NiMH batteries you should do a few small mods to the holders first.
see the thread V2-3-To-D, available Aug 1, $2.50/each, Qty of 10 http://candlepowerforums.com/vb/showthread.php?t=83915