Hey, you should check out Dud Thames/Flying Fish cycles. Its a pretty big shop and the staff is pretty good. You can get a simple cyclometer (has speedometer, odometer, clock, etc.) for pretty cheap.
The shop I mentioned carries Cateye lights, which is alright, and Trek stuff, which might be on sale since they no longer carry Trek starting this year.
Oh and they repaired Bayshore's stupid mismatched sidewalks so it isn't as bumpy, if you don't feel comfortable on the road.
I also love Pearl Izumi shorts, I got mine from Flying Fish, but it can get a little pricey so you could try Canari (Sports Authority?), which is cheaper; and make sure you have a bottle/cage - you might need that.