I have a Cycleport Ultra II Air Mesh Kevlar jacket, with matching pants arriving day after tomorrow or so, I added a Givi E52 topcase with brake lights, the reflective tape on the side bags (which I keep on all the time), and I just added some extra light strips from Admore Lighting to them, which give them brake/tail/blinker functionality.
Last winter, I picked up some electric gloves, because the DirtPaws I was using just weren't warm enough if the air temp was below about 65. I never plugged them in though; just having a non-textile glove was more than enough for down to about 45 degrees.
I just picked up a 4GB ipod Shuffle...the little brick one...1" long, .5" wide, 1/8" thick. I also have Etymotic Research sound isolating headset, so I can listen to tunes and save my ear drums from more damage.
I also added extra running lights from Clearwater Lights recently, but that was more because of my LD ride I'm doing this week than commute visibility.
My commute is 20 miles...from Fremont to Mountain View, so quite a bit shorter than yours.