I have not had a hand torch in quite a while, there is a old mag light by the back door but that for banging burglars on the head not putting the bins out. I cant think of any job that is easier doing it one handed, except for shining a light in hard to reach underbonnet places, and a dolphin is usually a bit big for that anyway
I was working somewhere that sold LED Lenser (a brand name, expensive though good Quality) so I have a number of these, I did purchase a number of these style for my sister and her partner
http://www.ebay.com.au/itm/1800LM-Zoomable-CREE-XM-L-XML-T6-LED-18650-HeadLamp-Torch-HeadLight-Rechargeable-/131161675509?pt=AU_Sport_Camping_Hiking_Lamps_Torches&hash=item1e89d856f5&_uhb=1 and we were all impressed at the quality and performance. Its always a bit of a gamble getting things sight unseen from OS, however most people have pretty good stories. Usually through ebay the Chinese sellers will go a fair way to keep their 100% feedback rating(in my experience) You could look at LED lenser products in your local shops (lots of tool stores nowdays) however they will be 4 to 5 time the price for similar ebay bargains.
I think you will find that the light from a CREE led is very different to what you have had from a dolphin torch. To my way of thinking it is a bit like cleaning your Glasses (or sunglasses) when they have unknowing become grotty and being surprised that everything is easy to see again.
I think that taking a small gamble of $20 or so on any of the ebay torches or head torches will give you an idea about if they are the right thing for you. Be sure to let us know how you go.