Hi Peach,
I am 5'11. I just bought a road bike this year, a Trek Lexa SLX 58'. THis is a Women's Specific Design road bike. I tried the Trek 2.1 (men's version of the Lexa SLX) in a 58 also, but it felt too stretched out for me. I think the Lexa has a more relaxed geometry, so you sit a tad bit more upright than the 2.1. I was fortunate that my LBS had a 58 in stock for me to test ride. So far, I love the Lexa. You might also try flat bar bikes, such as the Trek FX.
I tried a few other brands, Specialized, Fuji, etc, but they didn't have WSD's models in my size, so they kept putting me on men's/unisex bikes. I have long legs, but proportionally shorter torso, so I was struggling on the men's bikes.
Not sure how well you will do on CL as WSD's in the right size for you might be harder to find, although you may not need a WSD.
I'd suggest going to a few local bike stores and doing some test rides to see what you feel comfortable on.