Lightweight IDE (LWP) is a minimalistic, easy to use IDE for Mac OSX for Pascal/Object Pascal/C/C++/ObjC that provides a multi-window editor with syntax coloring, function pop-up and error shortcuts. It serves as a front-end to FPC and GCC.
Small!!!, simple, little bit (not critical) buggy, but, extremely useful. If you are looking for IDE that has small footprint, helps you managing compiling errors, and has syntax highlighting... LWIDE does the job! I use it with FPC.