Ditto the suggestion of the MagicShine P7 from geoman. It's $5 more than the light you indicated, and it's a HELL of a lot more light. Several times more light (someone here measured the MS P7 at 760 lumens or thereabout, that Cateye is maybe 80 or 100 at a guess?), LiIon batteries, longer run time (on high, only 8 or 9 hours on low, though its low is more light than the CatEye's high).

Up until this came out, I was considering a MiNewt USB, and had a Dinotte 200L, but the MS P7 is hands down the way to go now.