Actually the Saik SA-305 should do well as a tail-stander since it's a "fatty". It also runs on AA's so in a power outage situation you'd probably have AA's handy (and alkalines should be fine at least on the low level). They'd also be fine for non-flashaholics using it this way. You could even mod one to the emitter (& tint) / driver of your choice (although the driver mod would be a little more advanced).
For those in the US, the SAIK SA-305 "clones" are available quite a few places including Amazon and Tractor Supply Co (also see my thread here on the TSC light).
For more money you could buy the Cyclone C88 @ I-O too. (Although I'm not sure how well it tailstands.)
-Garry