Check out the Jamis Coda series.
They are an excellent commuter and road bike. If you want you can easily mount fenders for wet weather and a rear rack to carry panniers or a backpack (for clothes, etc). We sold loads of them when I worked at a shop in Atlanta before I retired.
http://www.jamisbikes.com/usa/street.html -- Click the "Urban" tab to see all the Codas.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.