Your bike sounds similar to mine. Keep a brake on there. Seriously consider adding punture-resistant tires (I use 28 continental contacts) and front/rear lights (Enough to be seen, not deer shiners). These additions, plus whatever you need to fix a flat, and you will save yourself a lot of headaches on the road. Also, think about what you need when you get to work: change of clothes, towel, deodorant, wet wipes, etc. I'm a minimalist so I'm not a huge fan of commuter-specific bikes, fancy bike specific clothing, messenger bag/panniers, fenders, reflective gear. Give me a bike, my old backpack and helmet and I'm set.