Thanks all, for the suggestions.

> How much money do you want spend? <

All things being equal, less is better. Also, if really expensive, I have more reason to worry about theft. I'd like to stay under $100, preferrably well under.

> Cygolite Metro cost $48 and will last up to 5 hours on a single 6.5 watt beam (either flood or spot) and the battery bag straps onto the frame thus freeing up your water bottle cage <

One problem I have is knowing how to compare the EL300 or 500 to these various wattage ratings. AS for battery on the frame, I have two water bottle cages to allow for long trips - which would start in the dark. The top tube has my frame pump. Makes things tough though I suppose some systems can be made to fit.

> but it uses 6 D bats which a lot of people don't like <

That would probably bother me - pretty big and relatively heavy.

> If you like the AA battery concept then Performance sells a compact light called the ViewPont Gen3 digital with 6 light settings that runs up to 5 hours on high with 4 AA's, this light is supposely equal to a 10watt halogen but probably closer to 8; this light cost $140 but now on sale for $100; <

Hmmm, that sounds interesting, though a little expensive.

> They also have the same light except non-digital that can run up to 8 hours on high but with 2 light settings <

I probably don't need 6 settings so this may serve well, but I'll check on brightness issues.

But as long as they are brighter than what I've used, they would be fine - as long as the mounts don't break!