Character I/O products...

Hi. My shop is in the process of migrating from a variety of Informix versions (4.10 on up) to more modern versions of the engines. All end-user application development has moved (for the nonce) to Powerbuilder. The decision was made, however, to not upgrade the 4GL and I-SQL products that are used for simple day to day systems maintenance tasks; they are simply too expensive to suit our needs. What else are folks using for simple, knockoff screens that don't need to be graphical? I am looking for low footprint, character based tools that can do simple master-detail type screens, similar to perform. I'm familiar with JYACC (and wasn't too impressed several years ago; is it better today?), but that is about it. Thanks, David