In reply to kevin stephens: I've got the Pretzle Zipka and am very happy with it, but mainly for short use (although bright light doesn't go so far as my Halogen zoom does. I've seen that Petzle have brought out a duo(?) with both the Halogen bulb for longer distance and a 5(?) LED cluster for low power closer use.
If you want to follow a path home occasioanally I'd say the zipka / tika is great, light and low on the juice use but anything other than a known direction I'd go for the combo (or even the zoom again).