Chrysler 20, 22
We used to have a Chrysler 20. It was a well made boat that sailed well and had a swing keel. We always admired the neighbor's chrysler 22 as well. These can usually be found very cheaply.
A Catalina 22 has a bigger cabin though and there are generally more to chose from in just about any market.
In Florida Compacs are very popular. The compac 19 and 23 are very good boats and generally thought of as more seaworthy than catalinas and have full keels but a shallow draft. They are usually more expensive.
If you've got the dough. Check out the compac 23 pilot house. They are new this year. I checked it out at the St. Pete boat show and I have to say it was very sweet.