Painting cabinets, built-in units, or furniture can look cheap if not done well. The professionals spray on finishes because it offers the smoothest and most consistent finish. There are two ways you can get a fine painted finish. One is with cans of spray paint and the other is with an HVLP spray gun. If you only have one project, stick with a spray can. If you're doing several projects or something large, consider using an HVLP spray gun or hiring a professional to do the job.
The following videos provide information on what HVLP spraying is and how to paint with a sprayer.