What is available in the realm of software that makes a pretty user interface for a web-based database application?
Both free and paid software (up to about $1,200) will be considered. The database application will be hosted on a typical Linux-based server that uses PHP5 and XHTML/CSS for the website. The actual data will be kept in either MySql or Postgress.
Ease of development (i.e., development of the user interface and the way it is programmed to interact with the data in the database) is the most important factor. In this specific case, calls to the server for screen updates is acceptable (AJAX is not required, but will be considered if it is the easiest to develop). Again, ease of development is the paramount factor in the software being sought.