Thanks for the help guys. Turns out I was able to find a good shop, Sports Basement, that gave me a nice Fuji Roubaix with 105 for $60 for two days.

I work for Delta, so I'm limited to that. They charge $150 each way for a bike! Renting was definitely the way to go. That shipbike website is pretty sweet though. I might use that next time. Thanks c0lnago.

Sorry Ygduf, I hate to be too forward. I'm a 56cm, I always assume everyone's that size anyway, right?

But all that kerfuffle aside, I had an awesome ride (check it), and I'll definitely be back to SF soon. There are bikes EVERYWHERE! Not at all like Atlanta. Beautiful city, beautiful scenery. You guys are so lucky!