It's important that you know the style of this type of furniture well before you buy anything. You may have seen one particular item that you like, and while this will give you a good idea of the general style, it's unlikely to give you all the background information that you need.
The main characteristics of Jessica McClintock romance styles are the curved edges and the finer details which are included in the furniture. It is unlikely that you will see straight edges and lines with this style of furniture – rather you will find headboards which are curved over the top, and small cabinets which have curves along the sides and along the bottom.