CygoLite TridenX
Since I just broke down and ordered, I will post here...I needed something with some real light, not a toy like my light & motion vega. So I'll try the Cygolite TridenX (Li-Ion version too!). My point is that is cheap right now at Performance (as much as I dont like the walmart of bike shops). Marked down to $319.99, with 20% off coupon through 10/5/05 coupon code 6002384 (they emailed it out). $255.99 for a supposedly ridiculously bright LED sounds good to me.