Here is a cheap headlamp that should work fine for those trips to caves where you generally take novices:
http://onlinestore.redirectme.net/camping/flthl-12-bk.html It is under $ 14.00 A company called Browning is selling a 3 watt headlamp: http://www.browning.com/products/catalog/lites/images/371842m.jpg I imagine you will find it a stores that cater to deer hunters. This would be a good lamp for a trip to Precipicio. Anybody been there lately? Do you have a high dome that needs checking? How about the Princeton Tec Shockwave: http://www.brightguy.com/detail.php?Sku=PRITEC8LNY That is a serious light. You could saw off the lens cap, and mount it to your helmet and put the batteries on your belt and add some duct tape, and you would have a 170 lumen headlamp for under a $ 100.00. David Locklear