Need bike better suited for my height

Just found out about The Chainlink the other night while riding home in that hail storm on Wednesday. Not such a fun ride but good tip about this site from a fellow rider. Thanks so much for the info.

I am trying to get a bike that is better suited for my height. I have recently updated my "too small" bike with nice Armadillo 27" all condition tires which cost me more than the bike. My "too small" bike is old but in good condition. Looking for advise or tip on a bike shop that might make a reasonable trade for which I don't have to pay too much for a good winter bike.

Any ideas and advise would be appreciated.

Missy