VisualBoyAdvance is a Game Boy Advance emulator that works with many ROMs that are publically available. It features save states (like those that are available in ZSNES), full screen support, joystick support, the all-important 'speedup emulation' key for impatient gamers, and a lot more.

Seq24 was created to provide a very simple interface for editing and playing midi 'loops'. It is a very minimal sequencer that excludes the bloated features of the large software sequencers and includes a small subset that proved to be useful for live performances.

TimeMon gives a graphical representation of where the CPU cycles are going. It's coarse, but better than nothing. The best feature is that it runs in an icon on your dock, so that you never lose it.

Grisbi is a personal accounting program. Grisbi can handle multiple accounts, currencies and users. It helps you manage your money using third party, expenditure and receipt categories, as well as budgetary lines, financial years, and other information that makes it adapted for both personal and associative accounting.