My first road bike was a Felt Z90. It has several advantages for your situation.
1) Very good price point.
2) As well made as any of the other mass produced makes such as Trek, Giant, Specialized, etc.
3) Has a more relaxed geometry which allows a little bit more upright riding position. This is usually a more comfortable position to begin with. If you get more into competitive riding you might go to a more aggressive riding position with a bike.
4) About 19 pounds or so. Not nearly as light as what I ride now but pretty good for an entry level bike.
5) Most people go for the brands like Trek, Giant, or Specialized so you see tons of these at riding events. You will stand out riding a Felt. Pretty cool, huh?
Oh and as for your height. Depending upon your foot to hip length you will probably be looking at a 56cm.
I still ride a Felt but it's a carbon fiber Z35. Same geometry as the Z90 (which I personally like) but a lot lighter, more responsive, and faster than the aluminum frames and other components. So ride it for a couple of years and if you really get into riding then consider going up to a carbon fiber and keep your first bike to put on a trainer so you can keep in shape indoors during the winter. In fact, I just got off of my old Z90 on it's trainer just about an hour ago.
