Hi guys,
Newbie here, of course.

So I'm sure you guys get this a lot, but I'm looking for a commuter bike for $200 or less, either new or used, that I can use to learn how to properly ride in the city. Nothing amazing or super fancy, just a solid bike. My city has added a ton of new bike lanes in the past six months, so I figured this would be my opportunity to ride.
I've been looking online, as some seemingly nice bikes are on sale, and this one caught my eye:
http://store.citygrounds.com/store/p...e-Bike-Purple/
Problem is I don't know what size I should get. I'm really short, so I've been having a hard time finding bikes that seem like they'd fit me. I've never been fitted before, and while I've looked at a lot of charts, I don't want to get the wrong size and realize I've got to return it. I'm 5 feet tall, so I was thinking of going with the 43 but I have no idea if that would be okay. Since I'm not used to riding in the city, I don't want to buy a bike that's too big!
(Also is this bike a good deal? I've heard good things about SE. Comes out to $250 with shipping.)
Thanks!