Did some re-working of my commuting light setup this season.
Previously I had a single red blinky in the back, and a very strong HID light up front. I always felt a little exposed in the rear (HA! I crack myself up). Plus the reflective elements of whatever I was wearing and my pack.
This year good, high quality BRIGHT lights and reflectors are showing up.
I added a blackburn MARS 2.0 light to the rear with amber side flashers and red triangle lights, two very cool reflective/powered velcro wraps for arms and legs, and a blackburn blinky dongle thingy for my helmet. Now I feel like a red/amber, and white strobe slogging thourgh the wind swept plains of upper freehold twshp. - plainsboro route.
Each lights was around $8-$15 so I think I've got ~$60 in rear or side facing lights on me and hte bike now, the HID was $400, but has been in service for 3 years now and lights up the night like a car headlamp.
the MARS 2.0 (seemed brighter than the 3.0http://www.blackburndesign.com/lights.html powered reflector - GREAT for signaling turns