If you can get a set of panniers (the ones that clip onto a bike pack rack) they're fab. If not, try and get a backpack that allows air to circulate to your back, otherwise your back gets sweaty and yuck.
As far as cothing, I just wear a t-shirt, trackpants tucked oh so stylishy into my socks or shorts (you could wear those tights if you want), and a zip up light cotton stretch jumper thing for this time of year in the mornings. If you really want to go all out you can get into the cylcing gear, but it's expensive!!
My advice, invest in some good riding gloves with padding for the nerve in your palm/through the wrist.
Riding in traffic - you'll probably ride on the bike track to around Zero Davey, not sure where your work is, but in peak hour, unless you're really confident and can keep up with traffic fairly well, I'd avoid the main arterials as it can get a bit hairy on them.
It's legal in Tas to ride on the footpath but pedestrians have right of way. Or if you ride on the roads, you legally have the right to take a whole lane since you are legally a vehicle. It is much safer to be assertive and do this if you ride on the road. Try and signal your intentions with hand signals and obey the road rules and you should be fine. remember you can't ride on footpath in the mall or bus mall (or anywhere else they have signs saying you can't). Just keep your wits about you in traffic and be aware of what's going on...don't have headphones.
I'm happy to catch up with you for a ride one day and give you some tips if you like!
35kg lost. (November 2005 - October 2006)
15kg gained again (as at October 2010).
Back to the drawing board - Let's do this thing!
"You can't change the winds, but you can change the sails"
"Reach out and take control of what lands in your lap"