A rear blinking light goes a long way, no need to spend a lot or over do it.
these are cheap and effective.
http://www.nashbar.com/bikes/Product...62_-1___202551
__________________
2010 Kestrel RT900SL, 800k carbon, chorus/record, speedplay, zonda
2000 litespeed Unicoi Ti, XTR,XT, Campy crank, time atac, carbon forks