After reading this thread, perusing several others, and spending loads of time reading through various P7 reviews on DX, I decided to go with the 8-mode P7 recced here (primarily due to the extra strobe modes and voltage regulation), as well as a set of blue protected Trustfires, the white safe charger, and a cheap bike mount.
Where on that web site is the bike mount? I can't find it. I'm also interested in a sub-$50 light. I don't see a bike mount for the flashlite type lights.