You pretty much nailed it with the Tac/tikka.
I must sound like a broken record, but some of the newer Black Diamond headlamps are really nice. The Moonlight is smallish and uses 5mm LED, but I find the beam is too wide/spread/sucky to even bother with it.
The BD Zenix (or the newer Zenix IQ) also uses AAA batts and is pretty small. It also has 5mm LED + a Lux. The IQ version is regulated IIRC, and has a couple fo different modes. BTW, the casing looks flimsy, but I was told by a DB rep that they're actually quite sturdy. Haven't got one to run over with my car and check /ubbthreads/images/graemlins/grin.gif
Woa! I forgot about the Scout; that's my son's headlamp. Yup, tiny, bright, and has all those annoying settings. /ubbthreads/images/graemlins/smile.gif About the only thing I dislike about it is that it uses 4 of those coin-cell batts. Expensive to replace. But now that I think about it, we haven't replaced the batts in over 2 years (and they DO need replacing).